Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Key Points Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum 'Desert Black' PP24902. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Maksaruoho 'Black Knight'. Patent Pending. The foliage is fine and elegant. Vigorous compact rounded habit, 4-9″ x 6-9. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Key Points Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Happy Young Lady Sedum Read more; Hens And Chicks Read more; Jade Plant Read more; Jelly Bean Sedum Read more; Jeweled Aloe Read more;Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Plant Black Knight in the sun in an average soil that is well-drained. Sedum 'Dark Knight'. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. The foliage is fine and elegant. The foliage is fine and elegant. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. The foliage is fine and elegant. How to plant, grow and care for Sedum Dark Knight. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Existuje na mnoho druhů rozchodníků. The foliage is fine and elegant. The foliage is fine and elegant. The foliage is fine and elegant. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. The foliage is fine and elegant. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Descrizione. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. This groundcover sedum forms attractive mounds with fantastic smoky blue-gray foliage reaching 8 inches tall by 18 inches wide at maturity. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. The foliage is fine and elegant. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. The foliage is fine and elegant. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Key PointsSedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. The foliage is fine and elegant. orpine 'Dark Knight'. The foliage is fine and elegant. The foliage is fine and elegant. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. Key Points Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. 42. Sedum telephium (Atropurpureum Group) 'Dark Knight'. Tento produkt nelze momentálně zakoupit. Join the RHS today and save 30%. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. The foliage is fine and elegant. Key PointsSedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. The gorgeous Viola MAGNIFI SCENT® Collection has been bred for beauty and fragrance. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. The foliage is fine and elegant. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Black Knight has glossy, black foliage and red flowers in August-September. Synonyms. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. 42. It contributes glossy texture to the garden. Plant Black Knight in the sun in an average soil that is well-drained. 540. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. A clump-forming perennial to around 50cm tall and 40cm wide, with fleshy, purple-black leaves and producing terminal clusters of bright magenta pink. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Let the leaf dry out for a few days until the cut area is dry and starts to form a callous. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. 5″ in diameter. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Autumn Joy stonecrop—Hylotelephium telephium 'Herbstfreude' (‘Autumn Joy’)—is a popular upright variety of stonecrop, also known as sedum. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight Echeveria The foliage is fine and elegant. Sedum maximum 'Touchdown Teak'Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. 540. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Key PointsSedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight® ist eine. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Winterhart, robust & krankheitsresistent. Black Knight has glossy, black foliage and red flowers in August-September. Water it well and keep it evenly moist. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. The foliage is fine and elegant. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. . 2304. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Sedum maximum 'Party Hardy Birthday Party' (Stonecrop) PP # 22,826. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Perovskia atriplicifolia Lacey Blue ('Lisslitt') PP20,845. Bees and butterflies love its pink flowers, making this species perfect for pollinator gardens . The offsets, or chicks, can either be removed to be planted elsewhere or left to grow as ground cover. Black Knight has glossy, black foliage and red flowers in August-September. Botanical Name: Sedum hispanicum ‘Blue Carpet’ Color: Blue. It also looks great in hanging baskets. Vigorous compact rounded habit, 4-9″ x 6-9. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. This black flowering succulent type ‘s name, “Arachnacantha,” originates from the Greek for “with spider web-shaped spinal columns. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. The foliage is fine and elegant. The foliage is fine and elegant. It is an excellent Sedum for the. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. A clump-forming perennial to around 50cm tall and 40cm wide, with fleshy, purple-black leaves and producing terminal clusters of bright magenta pink flowers, in mid-to late summer. The foliage is fine and elegant. October Daphne Stonecrop. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Small clusters of light mauve pink flowers are produced on. Farbintensiver Blütenschmuck. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Rozchodníky, u kterých je uvedeno "Na zakázku" jsou nasazené a budou se prodávat až dorostou. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. : Day: 68-82 F. The foliage is fine and elegant. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. od června do září. The foliage is fine and elegant. This late season bloomer can be admired for its strictly upright habit of dark black-purple, semi-glossy succulent leaves. The foliage is fine and elegant. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Drought. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. : 65-72 degrees F. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. Lobivia Arachnacantha Black. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. The Coleus series is an excellent choice for any grower who is looking for vivacious, unique pops of color in a landscape, pot, combination containers, or borders. Okvětní plátky jsou žlutě probarvené a seskupené. The foliage is fine and elegant. The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours). : 150-200 ppm nitrogen. Out of the numerous succulent varieties, the black prince succulents are some of the most stunning ones with their deep and dark hues. 17. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. It is a hybrid plant. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Perovskia atriplicifolia. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. While it is drying, prepare a container with soil in the bottom. Code SEBB. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. Key Points Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. The foliage is fine and elegant. Sedum in a type of succulent, which are defined as plants that are able to store water in their leaves, stems, and roots. Plant Black Knight in the sun in an average soil that is well-drained. ) is a massive genus of flowering plants that typically have thick. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight hat glänzende,. Black Knight has glossy, black foliage and red flowers in August-September. It should be sited in average to poor soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. They will come back the next. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Key PointsSedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. New Guinea impatiens form small clusters of foliage with large, colorful flowers providing a view of blooms in any garden! Harmony Dark Pinks specifically are fast and early thrivSedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. The foliage is fine and elegant. Black Knight has glossy, black foliage and red flowers in August-September. Vše o produktu. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. It is an excellent Sedum for the rock garden but also for the perennial border or for in a pot on terrace or balcony. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Vähenõudlik ja seenhaigustele vastupidav sort. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. . Black Knight has glossy, black foliage and red flowers in August-September. 150. Sedum Back in Black is an upright Sedum variety great for a hot, sunny site. The foliage is fine and elegant. . Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. 69 Kč –49 %. Plant Black Knight in the sun in an average soil that is well-drained. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. The foliage is fine and elegant. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Black Knight has glossy, black foliage and red flowers in August-September. The foliage is fine and elegant. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight becomes about 50 cm tall and wide and is hardy to -15 ºC. The foliage is fine and elegant. The foliage is fine and elegant. 150. Noted for its unusual dark foliage, Sedum 'Night Embers' (Stonecrop) is an upright, clump-forming, deciduous perennial with a striking foliage of thick, fleshy, semi-glossy, dark black-purple leaves. Plant Black Knight in the sun in an average soil that is well-drained. Plant Black Knight in the sun in an average soil that is well-drained. Black Knight has glossy, black foliage and red flowers in August-September. Sedum Black Knight is a strong plant that is disease-resistant (no mildew detected so far) and does not rot so it is ideal to make big pots. Black Knight has glossy, black foliage and red flowers in August-September. Plant Black Knight in the sun in an average soil that is well-drained. Add To Wishlist. The foliage is fine and elegant. Description. The foliage is fine and elegant.