Dondo Blue Ageratum

$ 1.95 Sold Out

A profusion of fuzzy flower clusters lasting all season, providing colorful accents when placed in a bedding garden or mixed containers. A great filler in bouquets, growing to have long, 2 ½ – 3 ‘ stems. Easy to grow and deer resistant.

                                                         50 seeds



Ageratum houstorianum


Germination: 5-10 days

Germination Temperature: Optimum soil temperatures 70-75ºF

Seed Planting Depth: Sow on the surface and press into soil, seeds need light to germinate

Starting Indoors:  Start indoors 6-8 weeks before the last frost. Provide 70-75ºF soil temperature. Transplant apart after the last frost, 8-12” apart.  

Sowing Outdoors: We do not recommend starting ageratum seeds outdoors

Growth Habit: Upright branching

Height and Width: 30-36" x 12"

Spacing: 8-12" apart

Light Needs: Full sun to part sun

Soil Needs: Fertile, well-drained

Approximate days to flower from seed: 90-100 days

Uses: Cut flowers, flower beds, containers, deer resistant, attracts pollinators

Care: Water seedlings regularly until established. Amend soil with compost before transplanting. Deadhead to encourage more flower production. Apply a liquid fertilizer every 3-4 weeks or use a time-release fertilizer at planting time. Self-seeds.