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Plant Guide

Best Plants for St. Louis, Missouri

📍 St. Louis, MO 🌡️ USDA Zone 6a 🌱 329+ compatible plants

Gardening in St. Louis

St. Louis falls in USDA Hardiness Zone 6a, which means your plants need to survive winters with minimum temperatures in the −10°F to 0°F range. The 329+ plants below are proven performers for your zone — including deer-resistant varieties, pet-friendly options, and pollinator-attracting species.

Top Plant Picks for St. Louis

Boxwood
Boxwood
Buxus sempervirens
Evergreen leaves provide year-round structure and vibrant green color, enhancing garden elegance through all seasons. This low-maintenance shrub is deer resistant and thrives in USDA zones 5-9.
Zone 5–8🐝 Pollinator
Creeping Phlox
Creeping Phlox
Phlox subulata
A vibrant carpet of pink, purple, or white blooms bursts forth in spring, creating stunning ground cover. This low-maintenance, drought-tolerant perennial thrives in USDA zones 3-9 and attracts pollinators.
Zone 3–9🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Kniphofia Red Hot Poker
Kniphofia Red Hot Poker
Kniphofia uvaria
Fiery red and orange blooms burst from tall spikes in summer, creating a dramatic garden focal point. This drought-tolerant beauty attracts hummingbirds and thrives in USDA zones 5-9.
Zone 5–9🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Persimmon
Persimmon
Diospyros virginiana
Bright orange persimmon fruits ripen in fall, adding vibrant color and edible appeal to your landscape. This low-maintenance tree thrives in USDA zones 4-9 and attracts wildlife while being deer resistant.
Zone 4–9🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Russian Sage
Russian Sage
Perovskia atriplicifolia
Sky-blue blooms from July to October create airy, vibrant spikes that brighten any full sun garden. This deer-resistant beauty thrives in zones 4-9 and attracts buzzing pollinators all season long.
Zone 4–9🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Italian Cypress
Italian Cypress
Cupressus sempervirens
Slender Italian Cypress dazzles with its tall, elegant evergreen form, adding vertical interest year-round in zones 4-9. This low-maintenance, deer-resistant tree thrives in full sun and attracts beneficial pollinators.
Zone 4–9🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Foamflower
Foamflower
Tiarella cordifolia
Delicate white to pinkish blooms brighten spring gardens with a frothy, airy display. This shade-loving, deer-resistant perennial thrives in USDA zones 3-9 and attracts pollinators.
Zone 4–8🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Ajuga
Ajuga
Ajuga reptans
Vibrant blue-purple blooms carpet the ground in spring, creating a stunning, low-growing display. This deer-resistant groundcover thrives in USDA zones 3-10 and attracts pollinators while requiring minimal care.
Zone 3–10🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Japanese Forest Grass
Japanese Forest Grass
Hakonechloa macra
Graceful, cascading lime-green blades of Japanese Forest Grass brighten shady spots with a soft, flowing texture all season long. This low-maintenance, shade-tolerant grass thrives in USDA zones 5-9 and resists deer browsing.
Zone 5–9🦌 Deer-Resistant🐾 Pet-Friendly†
Snapdragon
Snapdragon
Antirrhinum majus
Vibrant snapdragons burst with colorful blooms from spring through fall, adding cheerful charm to any garden space. These low-maintenance beauties attract pollinators and thrive in USDA zones 7-10.
Zone 4–10🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator
Abelia
Abelia
Abelia × grandiflora
Delightful pink and white blooms grace this shrub from June to September, adding vibrant color to your garden. Low maintenance, deer resistant, and a magnet for pollinators, it thrives in zones 4-9.
Zone 4–9🐾 Pet-Friendly†🐝 Pollinator
Weigela
Weigela
Weigela florida 'Wine and Roses'
Vibrant deep wine-red blooms splash color from late spring to early summer, creating a stunning focal point in any garden. This low-maintenance shrub is deer resistant and thrives in USDA zones 4-8.
Zone 4–8🦌 Deer-Resistant🐾 Pet-Friendly†🐝 Pollinator

Get a Personalized Plant List for St. Louis

Answer 4 quick questions about your yard — sun, soil, deer pressure, and pet situation — and get a custom list of plants that will thrive in Zone 6a.

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Other Cities in Zone 6a

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Browse All 329+ Plants for Zone 6a

The 12 picks above are a sample. Use the full directory to filter by sun, water, deer resistance, and more.

View All Zone 6 Plants →

† "Pet-friendly" means not listed as toxic by ASPCA for dogs and/or cats. Always supervise pets around plants. ASPCA Animal Poison Control: (888) 426-4435.