Varieties We Bring In
Standard · Hypnotica Yellow, Trellis · Virtuosa Pinkerific, PW · Virtuosa Vibrant Violet, PW
Durango Yellow, Deco Pot · XXL Cancun, Deco Pot · XXL Tabasco Red / Yellow Bicolor, Deco Pot
Watercolor Silks · Standard
We received some Dahlia on Sep 18, 2026.
We bring this in seasonally, so what is on the lot changes week to week. A received date shows when it last came in, not that it is here today.
Call (904) 471-0440 to confirm this plant and size before you make the trip.
Last received Sep 18, 2026.
We bring this in seasonally, so what is on the lot changes week to week. A received date shows when it last came in, not that it is here today.
Call (904) 471-0440 to confirm this plant and size before you make the trip.
Pet toxicity: Toxic to dogs and cats
Pet safety guideAbout Dahlia
Dahlias are tuberous perennials from the highlands of Mexico and Central America offering a vast range of flower forms — from small pompons to dinner-plate blooms — in virtually every color. In Northeast Florida (Zone 9b) they are grown as cool-season plants, planted in fall for winter-to-spring blooms, and may struggle in the intense summer heat and humidity.
Plant details
- Bloom Season
- Winter, Spring
- Flower Color
- White, Yellow, Orange, Red, Pink, Purple, Multi
- Growth Rate
- Moderate
- Foliage
- Deciduous
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended months: March, April, May, September, October, November.
Seasonal care
Bloom season. New foliage emerges. Good planting window.
Active growing season.
Bloom season. Foliage may begin to change or drop. Ideal planting window.
Dormant — drops foliage.
Care essentials
Choose a location with full sun and, if possible, light afternoon shade during the hottest months; dahlias in Northeast Florida perform best with morning sun and protection from intense midday heat.
Keep soil consistently moist but well-drained; water regularly and apply a thick layer of mulch to conserve moisture and moderate soil temperature. Avoid waterlogged conditions, which promote stem rot.
Plant in rich, well-drained soil amended with organic matter. Fertilize on a regular schedule during the growing season with a balanced fertilizer; avoid excess nitrogen. Tubers may overwinter in the ground in Zone 9b.
Similar needs
African Iris
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
Agapanthus
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
Alstroemeria
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
Aster
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
Atamasco Lily
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
Belize Sage
Shares 4 of the same needs: moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
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Common questions
Is Dahlia a good plant for St. Augustine?
Dahlia is a perennial. Mature size: 1-6 feet × 1-3 feet. Light: Full Sun (with light afternoon shade in hottest months). Water needs: Moderate. Recorded hardiness zone: 9a.
What is the recorded pet toxicity for Dahlia?
Toxic to dogs and cats
Care information verified from
Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.