Description
Scotch Moss (Sagina subulata ‘Aurea’) is the chartreuse form of Sagina. It brings glowing golden-green colour to shaded path gaps and cool, moist corners, forming the same soft, cushiony, moss-like mat as Irish moss — a bright accent where a green ground cover would recede.
Seed specifications
| Species | Common name | Leaf / blade | Zone | Height | Bloom | ASPCA |
|---|---|---|---|---|---|---|
| Sagina subulata ‘Aurea’ | Scotch moss | Fine gold leaf | 4–8 | 1–2 in | White, early summer | Not toxic-listed |
ASPCA: Sagina subulata is not on the ASPCA list of plants toxic to dogs and cats.
Why choose Scotch Moss (Sagina) Seed
Scotch moss is simply the golden-leaved form of Sagina subulata, sharing Irish moss’s cushiony habit but glowing a bright chartreuse that lights up shaded corners and path edges. It reaches 1–2 in and carries the same tiny white early-summer flowers.
Its needs are Irish moss’s needs: cool, evenly moist, part-shade ground and steady moisture. Bright, hot sun bleaches and scorches it, so site it out of harsh afternoon light. Surface-sow the fine seed and mist through the roughly 14–21 day germination.
Plant it beside green Irish moss for a two-tone effect, or use it alone to brighten a shaded corner or paver joint. Like Irish moss, Sagina subulata is not on the ASPCA list of plants toxic to dogs and cats.
Best uses
| Application | Suitability | Notes |
|---|---|---|
| Shaded path gaps | Excellent | Bright colour and soft texture in low light. |
| Cool, moist ground | Excellent | Needs even moisture to thrive. |
| Rockeries and edging | Very Good | Golden mat contrasts with green plantings. |
| Two-tone plantings with Irish moss | Excellent | Gold-and-green cushion effect. |
| Containers and pockets | Very Good | Neat, glowing mounding habit. |
| Hot, dry sun | Poor | Bleaches and dies back in drought and harsh sun. |
Irish moss, Scotch moss and true moss
| Property | Irish / Scotch moss (Sagina) | True moss |
|---|---|---|
| Type | Flowering plant (grows from seed) | Non-vascular moss (no true seed) |
| Look | Fine cushiony mat, tiny white flowers | Soft flat carpet, no flowers |
| Light | Cool part shade to sun with moisture | Shade |
| Foot traffic | Light stepping | Very little |
| Colour | Emerald (Irish) or gold-green (Scotch) | Deep green |
Zone & climate compatibility
| Setting | Performance | Notes |
|---|---|---|
| Cool, moist part shade | Excellent | The sweet spot — even moisture out of harsh midday sun. |
| Zone 4–6 | Excellent | Reliably hardy; sow spring or early autumn. |
| Zone 7–8, hot sun | Moderate | Needs shade and moisture; scorches and thins in baking, dry positions. |
How to sow Scotch Moss (Sagina) Seed
- Choose cool, moist, part-shade ground. Sagina wants even moisture and dislikes baking sun or drought. Prepare a fine, firm, weed-free surface.
- Mix the very fine seed with sand for even spreading, scatter thinly, and press in without covering — it needs light to germinate.
- Keep constantly moist. Mist so the surface never dries during germination (about 14–21 days) and while the mat knits together.
- Protect the young mat. Keep foot traffic off until established, then it takes light stepping between stones.
- Trim or top-dress to keep it flat. If it mounds, a light trim and a sprinkle of fine grit keeps a smooth cushion.
- Sow in spring or early autumn into cool soil for the most reliable establishment.
Care & maintenance
- Keep it evenly moist, especially in warm weather; Sagina will not tolerate drying out.
- Trim or top-dress if it mounds to keep a smooth, flat cushion.
- Site it out of harsh afternoon sun in warmer zones to prevent scorch.
- Keep heavy traffic off; it takes light stepping but is not a play surface.
Sources
- NC State Extension — Sagina subulata: plants.ces.ncsu.edu
- Missouri Botanical Garden — Sagina subulata: www.missouribotanicalgarden.org
- USDA PLANTS Database: plants.usda.gov
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