Description
CloverCore is a premium dual-clover lawn mix combining Strawberry Clover (Trifolium fragiferum) and White Dutch Clover (Trifolium repens) — non-GMO, USA-grown seed that delivers the most stress-tolerant two-species clover lawn available. Strawberry clover provides drought, saline, and flood tolerance; white Dutch clover provides maximum pollinator forage and stolon-based self-repair. Together they cover site conditions that neither species can handle alone.
CloverCore Seed Specifications
| Species | Common Name | Zone | Role in Mix | ASPCA |
|---|---|---|---|---|
| Trifolium fragiferum | Strawberry Clover | 3–9 | Saline, drought and flood tolerance; low-growing habit (2–4 in); dense mat; outperforms white clover in Zone 8–9 dry summers | Non-toxic |
| Trifolium repens | White Dutch Clover | 3–9 | Maximum pollinator forage (80+ bee species); stolon-based self-repair; high nitrogen fixation; white globe bloom May–Sep | Non-toxic |
ASPCA confirmed: Both Trifolium fragiferum and Trifolium repens are non-toxic to dogs, cats, and horses per ASPCA Animal Poison Control.
Why Choose a Strawberry Clover & White Dutch Blend
Strawberry clover (Trifolium fragiferum) and white Dutch clover (Trifolium repens) are the same genus but address fundamentally different site stresses. White Dutch clover is the most ecologically productive clover for standard lawns — 80+ native bee species, strong stolon-based self-repair, steady nitrogen fixation, and perennial density across Zones 3–9. But it fails in saline soils, struggles in alkaline conditions, and thins in Zone 8–9 dry summers. Strawberry clover fills exactly those gaps. UC Cooperative Extension documents T. fragiferum as uniquely tolerant of salt, flooding, and drought — the three site conditions that most reliably kill white Dutch clover.
The equal blend of both species is deliberate — each compensates for the other’s weaknesses across the full growing season. Strawberry clover holds density through hot dry periods while white Dutch clover provides the bloom and bee forage that strawberry clover alone cannot match.
Best Uses for the Two Clover Seed Mix
| Application | Performance | Notes |
|---|---|---|
| Challenging sites — saline, alkaline or flood-prone | Excellent | The defining advantage of CloverCore. Strawberry clover sustains the stand through conditions that kill a pure white Dutch clover lawn. Ideal for coastal properties, alkaline soils, and low-lying areas. |
| Drought-prone lawns — Zones 7–9 | Excellent | Strawberry clover’s deep root system maintains density through summer drought. The mix outperforms pure white Dutch clover in warm southern and western states. |
| Pollinator and bee forage lawn | Excellent | White Dutch clover provides forage for 80+ bee species (Xerces Society). Strawberry clover adds supplementary bloom Jun–Sep. Combined pollinator value exceeds either species alone. |
| Nitrogen-fixing lawn — reducing fertiliser | Excellent | Both species fix atmospheric nitrogen via Rhizobium root nodules. Combined N contribution maintains lawn fertility year-round. Most customers eliminate synthetic fertiliser in year one. |
| Pet-friendly lawn | Excellent | Both species ASPCA confirmed non-toxic. Soft underfoot. White Dutch stolons self-repair worn patches. Suitable for moderate to heavy pet traffic. |
| HOA-governed or appearance-conscious lawns | Not ideal | Both species bloom freely. For fine-leaf, low-bloom, HOA-compatible clover see FineFolio MicroClover. |
Zone & Climate Compatibility
| Zone | Performance | Notes |
|---|---|---|
| Zone 3–5 | Excellent | Both species cold-hardy. White Dutch leads in cool seasons; strawberry clover provides density backup. Seed Apr–May when soil reaches 50°F. |
| Zone 5b–7 | Excellent | Peak performance for both species. Seed spring (Apr–May) or fall (Aug–Sep). Longest combined bloom season. |
| Zone 8–9 | Excellent | Strawberry clover sustains the stand through hot dry summers where pure white Dutch would thin. Seed Oct–Nov for best Zone 8–9 establishment. The strongest dual-clover choice for the warm south and west. |
How to Plant CloverCore Dual Clover Mix
Both species germinate at soil temperatures of 50–65°F in 7–14 days. Seed in spring (Apr–May) or fall (Aug–Sep) in Zones 3–7. In Zones 8–9, fall seeding (Oct–Nov) gives best results.
- Prepare or mow short. For bare soil, rake smooth and firm lightly. For overseeding, mow existing grass to 1.5–2 inches and rake out any thick thatch layer.
- Broadcast at the surface. Sow per 1,000 sq ft broadcast evenly. Do not bury — both clover seeds require light surface contact to germinate.
- Rake lightly for soil contact. A single pass with a leaf rake is sufficient. Do not cover deeply.
- Water lightly and consistently. Keep the surface moist with two light waterings per day for 7–14 days until germination. Do not let the surface dry between waterings.
- Hold mowing for 4–6 weeks. Allow seedlings to root fully before the first mow. Set blades to 3 inches minimum in the first season.
- Annual top-up in Zones 8–9. In hot southern climates, a light overseed each fall maintains density as summer stress thins the stand.
Full zone-by-zone timing and establishment guides at Clover Lawn Guide and Alternative Lawn Guide →
Sources
- UC Cooperative Extension — Trifolium fragiferum salt, flood and drought tolerance: ucanr.edu
- UMD Extension — White clover lawn ecology and nitrogen fixation: extension.umd.edu
- Xerces Society — White Dutch clover as forage for 80+ native bee species: xerces.org
- ASPCA Animal Poison Control — Trifolium fragiferum and Trifolium repens non-toxicity: aspca.org
Related guides: Clover Lawn Guide Alternative Lawn Guide Dog-Friendly Lawn Guide
Single-species clover: HearthClover White Dutch StrawberryField Strawberry Clover FineFolio MicroClover ScarletStitch Crimson Clover
Multi-clover blends: TriLeaf Three-Clover Mix
Clover-grass mixes: GroundKeep No-Mow Mix MicroTurf MicroClover Fescue CloverSport High Traffic Mix
