Upright clover

Trifolium strictum, Fabaceae

Zones

8–11

Layer

Ground Cover

Lifespan

Annual

Growth

Fast

Guild Roles

Nitrogen FixerGround Cover

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

White fonioDigitaria exilis

Nitrogen FixationBeneficial Insect Habitat

Prostrate Summer CypressKochia prostrata

Nitrogen Fixation

Burr MedicMedicago polymorpha

Nitrogen FixationPollinator Sharing

Slender hairgrassDeschampsia elongata

Nitrogen FixationBeneficial Insect Habitat

Hawkweed-leaf wallflowerErysimum hieraciifolium

Nitrogen FixationPollinator Sharing

Antagonistic Plants

Arizona WalnutJuglans major

Arizona walnut produces juglone which is toxic to most legumes including clovers, inhibiting their growth and nitrogen fixation

Gambel OakQuercus gambelii

Gambel oak produces tannins that inhibit understory legumes and creates dense shade

Uses

Functions

Nitrogen FixationSoil BuildingQuick EstablishmentWarm Season CoverDrought Tolerance

Common Questions

What zones does Upright clover grow in?

Upright clover grows in USDA hardiness zones 8 through 11.

Is Upright clover a nitrogen fixer?

Yes, Upright clover is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for Upright clover?

Good companions for Upright clover include White fonio, Prostrate Summer Cypress, Burr Medic, Slender hairgrass, Hawkweed-leaf wallflower.

Design guilds with Upright clover and see companion relationships visually.

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