Phlox Bright Eyes

Potted Phlox can be planted in spring or autumn when the soil is workable and not waterlogged. Choose a position suited to the type, as tall border Phlox and low-growing creeping Phlox have different space and light requirements.

Most border Phlox grows best in full sun or light shade, in fertile soil that stays moist in summer but drains well. Give plants enough room for air to move around them, as crowded growth is more prone to mildew.

This is usually powdery mildew, a common fungal problem on Phlox, especially in dry weather. Water the soil during prolonged dry spells, avoid overcrowding, remove badly affected leaves and keep the foliage as dry as possible when watering.

Phlox may flower poorly if it is in deep shade, allowed to dry out or is overcrowded. Give it more sun, keep the soil evenly moist in summer and divide large, congested clumps in spring or autumn.

Most garden Phlox is perennial and returns each year. Tall border types form gradually larger clumps, while creeping Phlox spreads across the ground and is useful for the front of borders, rock gardens and slopes. Divide plants if they outgrow their space.