|1||15C+||Indoor||Grow as a houseplant or under heated glass.|
|2||10 to 15C+||Indoor / Outdoor||Grow indoors, or outdoors in summer in a sheltered spot|
|3||5 to 10C||Tender||Grow outdoors in summer, and in a heated glasshouse in winter.|
|4||1 to 5C||Tender||Grow outdoors or under glass without risk of frost.|
|5||-5 to 1C||Half-Hardy||Hardy in coastal/mild/sheltered areas. Will not tolerate hard/sudden frost. May require winter protection in situ. such as fleece or straw mulch.|
|6||-10 to -5C||Hardy||May suffer at altitude, central/northerly locations, harsh winters, cold gardens and when grown in pots.|
|7||-15 to -10C+||Hardy||Will survive most severe winters but may be at risk in central/northerly locations and in pots. Top growth may be destroyed but will usually re-grow.|
|8||-20 to -15C||Hardy||Will survive severe winter, but may need protection when grown in pots.|
|9||-20C & Colder||Very Hardy / Hardy||in the severest European climates.|
19 In stock
Originating from South Africa
A vigorous perennial with large clumps of dark green, leathery, strap-shaped leaves and a 60cm tall flowering stem bearing a rounded pendulous umbel of inky black buds opening into deep purple tubular flowers. ‘Black Pantha is one of the most recent and darkest flowered Agapanthus introductions and makes an excellent cut flower lasting between 10 and 14 days in water.
They are super container plants, especially when a pair are placed flanking a door or steps, but work equally well when planted en masse in a border. Container grown plants should be over wintered in a frost-free greenhouse. In light of recent winters it is also advisable to mulch Agapanthus grown in a border.
Grow in moist but well-drained soil in sun. Divide in spring if clumps become congested and re-pot containerised plants regularly. Although congested plants will flower at a younger age, their roots are capable of cracking a terracotta pot.
Height and spread after 2 years 1m x 50cm