Ageratum Red Flint
New for 2026

Red Flint

Ageratum Seeds

Red Flint ageratum blooms in an unusual color palette for ageratums, warm shades of rose-pink to magenta-red.  Clusters of ¼ in. fluffy flowers atop 24 in. straight, sturdy stems are long-lasting in fresh cut and dried arrangements. Red Flint looks beautiful summer through fall in sunny garden borders as well as in mixed containers, where the fine, floss-like texture contrasts well with bold summer annuals like zinnias, marigolds, and petunias.

½ gram - $3.99
View all of our Ageratum varieties.

Growing Red Flint Ageratum Seeds

Bee introduces how to plant

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 in. apart. Thin to the strongest plant.

Grow Ageratum: 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.

U.S. Shipping Rates

Free shipping on U.S. orders over $70.00.
Free priority shipping on U.S. orders over $200.00.

Standard U.S. shipping is $7.99.
Priority U.S. shipping is $11.99.


International Shipping Rates

Shipping to Canada is $17.99.
International shipping to all other countries is $19.99.

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.