Butterfly bush 'Black Knight'

Buddleja davidii

How to grow Butterfly bush 'Black Knight'

  • Full Sun

  • Medium

Easy to grown if given full sun and enough water.But do not over water.1

Susceptible to Black Mildew, Sooty Mold, Cankers, diebacks, wilts, fungal leaf spots, Capsid bug, caterpillars, weevils, mullein moth and spider mites.

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Black Knight is thought of as hardy, so this plant will survive close to or on freezing temperatures. Try to keep the ph of your soil between the range of 6.5 and 7.0 as Black Knight likes to be in weakly acidic soil - neutral soil.

Growing Black Knight from seed

Root semi-ripe cuttings in summer or hardwood cuttings in fall. Sow seed at 66-75°F in spring.
The seed is very fine and can be sown fresh in the autumn onto the surface of standard loam based compost. Water with a very fine spray or by standing the pot in a tray of water.
Germination takes 10 to 20 days

Soil temperature should be kept higher than 66°C / 151°F to ensure good germination.

By our calculations, you should look at sowing Black Knight about 56 days before your last frost date.

Transplanting Black Knight

Over winter young plants in a cold frame and pot up in the spring, before planting out into the final position. Can flower in the first season

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Black Knight is a hardy plant.

Harvesting Black Knight

Other Names for Butterfly bush 'Black Knight'

Butterfly Bush

Footnotes

fn1"Missouri Botanical Garden":http://www.mobot.org/gardeninghelp/plantfinder/plant.asp?code=B750