Creeping Phlox (Phlox subulata): The Colorful Spring Bloomer for Rock Gardens and Borders
Creeping phlox (Phlox subulata), also known as moss phlox, is one of the most rewarding and colorful ground covers for sunny locations. From April to June, it transforms rock gardens, low walls, and border edges into a brilliant carpet of white, pink, red, blue, or purple blooms. Even outside of bloom, it impresses with its dense, evergreen cushion of needle-like leaves.
The Most Beautiful Varieties
| Variety | Flower Color | Height | Special Feature |
|---|---|---|---|
| Phlox subulata ‘Emerald Cushion Blue’ | Light blue | 10 cm | Extremely free-flowering |
| Phlox subulata ‘Scarlet Flame’ | Bright red | 10 cm | Most intense color |
| Phlox subulata ‘May Snow’ | Pure white | 10 cm | Refined and elegant |
| Phlox subulata ‘Purple Beauty’ | Deep purple | 12 cm | Darkest variety |
Location and Planting
Creeping phlox needs full sun โ the more, the better. Only in fully sunny spots will it truly bloom abundantly. The soil should be well-drained, sandy-gravelly, and rather low in nutrients. Heavy, damp soils lead to root rot and are unsuitable. Rock gardens, sunny slopes, and dry low walls are ideal.
Plant creeping phlox in spring, spacing plants 25-30 cm apart. For quick ground coverage, about 12 plants per square meter are enough. Loosen the soil before planting, and work in sand or grit if the soil is heavy. Water well after planting.
Minimal Care
Creeping phlox is extremely low-maintenance. Watering is only needed during extreme drought. Fertilize very sparingly โ a small amount of compost in spring is enough, since too much nitrogen leads to soft growth and reduced flowering. After flowering, you can trim the cushions back by about a third with hedge shears. This encourages compact growth and prevents the plant from becoming bare in the center.
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