Companion plants for Black Jack
Dahlia 'Black Jack'flower
36 partners scored across pest control, nitrogen, root depth, shade and spacing.
Best partners
- Great pair
- Sainfoin attracts Ground beetles and Ladybugs and more, which prey on the Slugs and Aphids and more that attack Black Jack
- Sainfoin fixes nitrogen in the soil that Black Jack feeds on
- Black Jack draws Bees and Bumblebees and more that improve pollination for both
- Great pair
- Alsike Clover attracts Ground beetles and Ladybugs and more, which prey on the Slugs and Aphids and more that attack Black Jack
- Alsike Clover fixes nitrogen in the soil that Black Jack feeds on
- Black Jack draws Bees and Bumblebees and more that improve pollination for both
Planning a whole bed?
Build a season-long sowing and planting calendar around Black Jack β no account needed.
Also works well
- Allard's Lavender
- Brown Mustard
- Buchii Lavender
- Bugloss
- Candytuft
- Chaytor's Lavender
- Christiana Lavender
- Clover
- Fernleaf Lavender
- French lavender
- Moldavian dragonhead
- Painted Lady Runner Bean
- Romanesco broccoli
- round leaf lavender
- Runner Bean
- Runner Bean Sunset
- Soybean
- Spanish lavender
- Spike lavender
- Wallflower
- Winged bean
- Woolly Lavender
- Woolly Lavender
- African Marigold
Keep apart
Fennel releases compounds that inhibit Black Jack
White Sage releases compounds that inhibit Black Jack
