Fruit Tree
Grapefruit
Citrus paradisi
Varieties We Carry
StandardCitrus paradisiRuby Red GrapefruitCitrus paradisi
Sizes & Pricing
5 galFrom$74.95
10 galFrom$125.00
Fresh this week. Last restocked Mar 9.
LightFull Sun
WaterModerate
Mature size15-20 feet × 10-15 feet
About Grapefruit
Ruby Red Grapefruit is a pigmented cultivar of grapefruit (Citrus × paradisi) distinguished by its deep pink-red flesh and sweeter, less bitter flavor compared to white varieties. It was the first patented grapefruit cultivar in the United States, developed in Texas in the 1920s. Starting at $74.95.
Plant details
- Bloom Season
- Spring
- Flower Color
- White
- Growth Rate
- Moderate
- Foliage
- Evergreen
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
J
F
M
A
M
JNow
J
A
S
O
N
D
This monthGood windowOther months
Seasonal care
Bloom season. Good planting window.
Active growing season.
Growth slows as temperatures cool.
Retains foliage through winter. Can be planted in mild winter periods.
Care essentials
Light
Plant grapefruit in full sun — a minimum of 8 hours of direct sunlight daily — for optimal fruit set and sweetness. In NE Florida, south- or southeast-facing exposures away from frost pockets are ideal.
Water
Water deeply and consistently, keeping the root zone (top 12 inches) between field capacity and no more than two-thirds depleted; allow the soil to partially dry between waterings. Established trees in NE Florida typically need supplemental irrigation during dry spells; avoid waterlogged conditions.
Soil & Fertilizer
Plant in well-drained sandy or loamy soil with pH 5.5–6.5. Fertilize three times per year (February, May, October) with a citrus-formula fertilizer that includes micronutrients; UF/IFAS recommends 1–1.5 lbs of actual nitrogen per tree per year for home landscape trees.
Similar needs
Apple
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $150.00Same conditions
Calamondin
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $79.95Same conditions
Kumquat
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $39.95Same conditions
Loquat
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $84.95Same conditions
Mandarin
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $99.95Same conditions
Mango
Shares 5 of the same needs: full sun, moderate water, sandy, zone 9a hardiness, and pollinator-friendly.
From $125.00Same conditions
You may also like
Common questions
Is Grapefruit a good plant for St. Augustine?
Grapefruit is a fruit tree for Zone 9b coastal Florida gardens, reaching 15-20 feet × 10-15 feet.
Care information verified from
Last reviewed March 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.