Wholesale citrus

Eustis limequat

Citrus × floridana ‘Eustis’

A kumquat–lime hybrid combining tart lime-like juice with a small tree and somewhat better cold tolerance than true limes.

EdibleLime hybridCompactImproved cold tolerance

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Landscape layersLower canopy

Mature size

Usually 6–10 ft tall and wide

Climate fit

Urban core · USDA 9b–10a · Valley suburbs · USDA 9a–9b · Desert outskirts · USDA 8b–9b

Special categories

EDIBLE

Winter chill

None

Typical harvest

Fall through winter

Before you plant

These conditions determine whether it will thrive.

Required microclimate

Placement is part of the growing system.

Zone C — morning shade, hot afternoon sun, at the west end of the sunnier south-facing side. The extra heat finishes the fruit, and the wall releases warmth through frosty nights.

Cold hardiness

Cover in a hard freeze

No exact figure exists. Limequats are much hardier than limes but much less hardy than kumquats. Cover it when a night below 28°F is forecast.

Blossoms and fruit: below 28°F

Heat tolerance

Shade from late-afternoon sun

No variety-specific heat data exists. Treat it like its lime parent: it handles heat and sun, but paint or shade any bare bark.

Sources:

citrusvariety.ucr.edu , extension.arizona.edu

Right plant, right place

Will Eustis limequat grow at your Arizona property?

Plant in fast-draining soil with the graft union above grade. Keep mulch away from the trunk and avoid lawn irrigation at the root crown.

Best regional fit: Urban core · USDA 9b–10a, Valley suburbs · USDA 9a–9b, Desert outskirts · USDA 8b–9b.

Light

Sun exposure

Full sun; young trunks and exposed scaffold limbs need sunburn protection

Water

Irrigation

Deep, regular irrigation with drying between cycles; expand the wetted zone as the canopy grows

Fruit set

Pollination

Self-fruitful

Harvest

How to use it

Drinks, cooking, marmalade, and lime substitutes

Planting & stewardship

How to help Eustis limequat thrive

1
Verify both the named cultivar and rootstock on the nursery tag before planting.
2
Whitewash newly exposed bark and protect cold-sensitive trees during hard freezes.
3
Feed in several light applications during the active season rather than one heavy dose.
4
Let fruit color and flavor—not a calendar date alone—confirm harvest readiness.

Read the horticultural reference ↗