Garden phlox
Phlox paniculata
also called border phlox
Worth the trouble in a late border, but only where air moves freely — crowded plants mildew every year.
Light Full sun to light shade, in a spot where air moves freely.
Water Keep the soil moist, and water at the base so the foliage stays dry.
Height 1 m
Spread 23.6 in
Spacing 60 cm
Spacing & sowing
- Plant spacing
- 23.6 in
- In-row spacing
- 23.6 in
- Between rows
- 2 ft 6 in
- Square-foot density
- Not suited to SFG
Growing
- Type
- Flower · Perennial
- Botanical family
- Mixed / other
- Sunlight
- Full sun to light shade, in a spot where air moves freely.
- Watering
- Keep the soil moist, and water at the base so the foliage stays dry.
- Feeding
- A balanced feed in spring, with compost spread over the roots.
- Frost tolerant
- Yes
- Flowering
- July
- Pruning
- Thin each clump to five or six shoots in spring, and cut the stems down in autumn.
Through the year
- Mar–Jul Spring Growth
- Jul–Sep Flowering
- Sep–Oct Growing
- Oct–Dec Leaf Fall
- Jan–Mar Leaf Fall
Companions
Delphiniums, Roses, Grasses, Monarda
Pests & problems
The Cottage Garden Companion — the gardener's herbarium at cottagegardencompanion.com