TriLeaf | Three-Clover Lawn Seeds Mix

TriLeaf is a premium three-clover lawn mix combining White Dutch Clover, Medium Red Clover and Crimson Clover — non-GMO, USA-grown seed that delivers staggered bloom from April through September, maximum nitrogen fixation, and outstanding pollinator support across Zones 3–9. Whether you are establishing a full clover lawn from bare soil or overseeding into existing grass, TriLeaf provides built-in ecological redundancy that a single-species clover lawn cannot match.

TriLeaf Seed Specifications

Species	Common Name	Zone	Height	Bloom	Type	ASPCA
Trifolium repens	White Dutch Clover	3–9	6–8 in	May–Sep	Perennial	Non-toxic
Trifolium pratense	Medium Red Clover	4–8	12–18 in	May–Sep	Short-lived perennial	Non-toxic
Trifolium incarnatum	Crimson Clover	3–9	8–12 in	Apr–Jun	Annual (self-seeding)	Non-toxic

ASPCA confirmed: All three species — Trifolium repens, Trifolium pratense, and Trifolium incarnatum — are non-toxic to dogs, cats, and horses per ASPCA Animal Poison Control.

Why Choose a Three-Clover Lawn Mix

Each species in TriLeaf contributes something the others cannot. White Dutch Clover provides the main ecological engine: the widest pollinator forage (80+ native bee species per the Xerces Society), the fastest stolon-based self-repair for bare patches, and robust nitrogen fixation through the full summer season. It is the perennial backbone of the mix. Medium Red Clover (Trifolium pratense) adds visual height and deep pink-red flowers in May through September — taller than white clover and particularly valuable for long-tongued bee species such as bumblebees that cannot reach the nectar in shorter flowers. Penn State Extension documents red clover as one of the most productive nitrogen-fixing legumes available to home growers. Crimson Clover (Trifolium incarnatum) opens the pollinator season in April and May, weeks before the other two species bloom — providing critical nectar for queen bumblebees emerging from dormancy. Its annual self-seeding habit constantly introduces fresh seedlings that maintain stand density in areas where perennial components thin over time.

Together the three species deliver staggered bloom from April through September, maximum combined nitrogen fixation, and structural redundancy — if one species struggles in a particular microclimate, the other two sustain the stand. A single-species clover lawn cannot offer this resilience.

Best Uses for TriLeaf Three-Clover Mix

Application	Performance	Notes
Full clover lawn — maximum ecology	Excellent	Longest combined bloom season of any clover product. Three N-fixing species. Germinates 7–14 days. Full coverage from one season.
Pollinator and bee forage lawn	Excellent	Staggered bloom Apr–Sep across three flower types. Supports short-tongued bees (white clover), long-tongued bees (red clover), and early-season queens (crimson). Highest biodiversity value of all clover products.
Nitrogen-fixing lawn — reducing fertiliser	Excellent	All three species fix atmospheric nitrogen via Rhizobium root nodules. Combined N contribution exceeds any single-species clover lawn. Most customers eliminate synthetic fertiliser in year one.
Pet-friendly lawn	Excellent	All three species ASPCA confirmed non-toxic. Soft underfoot. White Dutch stolons self-repair worn patches. Suitable for moderate pet traffic.
Overseeding into existing grass	Very Good	Broadcast directly into grass without removing existing lawn. White Dutch and crimson integrate best. Red clover adds visual height variation. Full integration in one season.
HOA-governed or appearance-conscious lawns	Not ideal	Red clover reaches 12–18 inches at bloom — visibly tall. All three species bloom freely. For fine-leaf, low-bloom, HOA-compatible clover see FineFolio MicroClover.

Zone & Climate Compatibility

Zone	Performance	Notes
Zone 3–5	Excellent	White Dutch and crimson both cold-hardy to Zone 3. Crimson Apr–Jun bloom especially valuable in cold zones where early bee forage is scarce. Seed Apr–May when soil reaches 50°F.
Zone 4–7	Excellent	All three species perform at their peak. Longest combined bloom season — Apr through Sep. Red clover at its most productive in Zones 4–7. Seed spring or fall.
Zone 8–9	Very Good	White Dutch and red clover semi-dormant in peak summer heat; recover in autumn. Crimson clover: overseed per 1,000 sq ft each October. Seed in fall (Sep–Nov) for best Zone 8–9 establishment.

How to Plant TriLeaf Three-Clover Mix

All three species germinate at soil temperatures of 50–65°F. The mix germinates in 7–14 days — crimson clover establishes fastest, followed by white Dutch, then red clover. Seed in spring (Apr–May) or fall (Aug–Sep) for best results.

1. Prepare or mow short. For bare soil, rake smooth and firm. For overseeding, mow existing grass to 1.5–2 inches and lightly rake out any thick thatch layer.
2. Broadcast at the surface. Sow per 1,000 sq ft for new lawns. For overseeding into existing grass, sow per 1,000 sq ft. Do not bury — all three clover seeds are tiny and require light soil contact.
3. Rake lightly for soil contact. A single light pass with a leaf rake is sufficient. Do not cover deeply.
4. Water lightly and consistently. Keep the surface moist with two light waterings per day for 7–14 days until germination. Crimson clover will appear first. Do not let the surface dry between waterings.
5. Hold mowing for 4–6 weeks. Allow seedlings to root before the first mow. Set blades to 3 inches minimum in the first season.
6. Annual crimson top-up in Zones 8–9. Crimson clover is an annual that self-seeds in most zones. In Zone 8–9 where summers are too hot for reliable self-seeding, broadcast per 1,000 sq ft of crimson seed each October to maintain the three-species balance.

Full zone-by-zone timing and care guides are in our White Dutch Clover Lawn Guide and How to Plant White Clover →

Sources

1. UMD Extension — White Clover in Lawns (N-fixation, stolon repair, ecology): extension.umd.edu
2. Penn State Extension — Red Clover (nitrogen production, establishment): extension.psu.edu
3. Xerces Society — Native Bee Forage Value of Clover Species (80+ bee species): xerces.org
4. NC State Extension — Trifolium repens dwarf cultivar profile: plants.ces.ncsu.edu
5. ASPCA Animal Poison Control — Trifolium spp. non-toxicity: aspca.org

Related guides:

White Dutch Clover Lawn Guide

How to Plant White Clover

Clover Lawn for Dogs

Nitrogen Fixing Guide

Single-species clover:

HearthClover White Dutch

FineFolio MicroClover

StrawberryField Strawberry Clover

ScarletStitch Crimson Clover

Multi-clover blends:

CloverCore Dual-Clover Mix

Clover-grass mixes:

GroundKeep No-Mow Mix

MicroTurf MicroClover Fescue

CloverSport High Traffic Mix