SOWING INSTRUCTIONS
Starting Indoors:
Start indoors 8-12 weeks before planting out. Keep at 65-70°F.
Starting Outdoors:
Direct sow after last frost.
WHEN TO SET OUTSIDE
After all danger of frost has passed.
PLACEMENT & CULTIVATION
Berkheya 'Zulu Warrior' is an uncommon perennial with prickly rosettes of basal leaves followed in mid-summer with a spiky stalk displaying lovely, pale purple sunflower-like blooms at their furthermost tips. They thrive in locations with fertile soil on the dry side, such as in rock gardens and containers, or along slopes, wherever drainage is excellent.
Watering Details:
Drought tolerant, but will produce more growth and flowers if provided with about 1" of water per week.
Soil pH:
Not particular about soil pH.
Fertilizer:
Mix in a couple of inches of compost or an organic granular fertilizer in late spring.
Diseases & Pests:
No major problems. Avoid winter root rots by placing in a very well-drained location.
When to Cut for Bouquets:
Cut when most flowers on a stem are open. Beware spines on stems.