SOWING INSTRUCTIONS
Depth:
Surface sow and press in lightly; requires light to germinate.
Seed To Bloom:
12-13 weeks
Starting Indoors:
Recommended. Sow indoors 6-8 weeks before planting out and keep at 75°F until germination occurs, then at about 60-65°F. Water from below by placing containers/trays in a larger tray of water and allow to drain; this helps prevent damping off and disturbance of seeds.
Starting Outdoors:
Direct sow about 1-2 weeks after the last frost for flowers mid-summer to fall.
WHEN TO SET OUTSIDE
1-2 weeks after last frost.
PLACEMENT & CULTIVATION
Dr. William Houston introduced Ageratum to England from Veracruz, Mexico, where he first collected the species in the 1700s. A reliable summer border favorite, Ageratum has handsome foliage and clusters of long-blooming fuzzy flowers that withstand summer rains. Deadheading is minimal but helpful to keep it looking fresh into fall. Pinch when setting out into compost-enriched soil and mulch to conserve moisture.
Watering Details:
Regular watering, 1" per week.
Soil pH:
Not particular about pH levels.
Fertilizer:
Mix in about 2" of compost and organic time release fertilizer before planting.
Diseases & Pests:
Aphids may be an issue and can be controlled with insecticidal soap. Avoid powdery mildew by placing in a location with good air circulation. Do not grow in hot & humid conditions.
When to Cut for Bouquets:
When 1/2- to 3/4 of the flowers have opened in the cluster.
