Orders placed today ship Tuesday, December 1st.
New Seeds for 2016
  1. Home
  2. Annual Flower Seeds
  3. Ageratum Seeds


aka Floss Flower

Ageratum houstonianum

Ageratum's powder puff blooms are outstanding cut flowers and Butterflies love them. They add easy garden color in borders or containers from summer until frost.

Hawaii 5.0 Blue Ageratum blue blooms AN11195

HAWAII 5.0 BLUE Ageratum Seeds

Six to eight inch tall plants with enormous flower heads in a beautiful shade of blue. An improved Hawaii Blue, with a higher germination rate and better garden performance.

30 pelleted seeds - $1.99
Diamond Blue Ageratum flowers AN11230

DIAMOND BLUE Ageratum Seeds

Showing uncommon vigor, the branching, well-shaped plants reach up to 16 inches high in the ground, yet are fantastic performers in containers. Diamond Blue is outstanding for massing in the landscape, mixing into borders, or for providing close-up, butterfly attracting color in patio pots.

50 seeds - $1.99
Blue Horizon - Annual flower - Huge clusters blue blooms. AN15444

BLUE HORIZON Ageratum Seeds

Blue Horizon blooms continuously from late spring to frost. Long-lasting, lavender-blue flowers on 18 to 30 inch tall plants. One of the best ageratums for cut flowers.

30 pelleted seeds - $1.99

Ageratum plants grow beautifully with:

Sweet Alyssum, Cosmos, Lobelia, Marigold, and Petunias in full sun to part shade.

How to Plant Ageratum Seeds

Sow seeds in cell packs or flats, press into soil but do not cover. Needs light to germinate. Kept at 75° F., germination is in 5-14 days. Can direct sow after all danger of frost in groups of 3-4 seeds spaced 6-12 inches apart. Thin to the strongest plant.

Comments: Full sun in cooler climates, part shade elsewhere. Prefers rich, moist soil. Blooms are extraordinarily long-lived, dead heading is necessary, yet infrequent. Plants are low maintenance, resist rabbits and deer. Flowers attract bees and butterflies.