How to Grow and Care for Tall Phlox in Your Garden

Tall Phlox offers an array of colors during the summer months. This plant can bloom for six weeks or longer. Some start to bloom in mid-summer, while others do not begin until late in August. Colors include white, red, purple, lavender, rose, and pink. Some even blend two colors with the center of another color. The flowers have five lobes and grow in clumps at the top of the plant.

The plants grow from 2 to 4 feet upright on a stiff stem. Their leaves are deep green and lance-shaped. When the stems on the plant are approximately six inches up, pinch off all but five or six of them and the tips of these stems. This will permit the plant to develop more giant clumps of blooms. 

Top Benefits of Planting Tall Phlox for Vibrant Summer Blooms

Tall Phlox flourishes in areas that receive full sun but grows in lightly shaded spots as well. Too much shade prevents the plants from producing as many blooms, and the quality of the blooms suffers. They should not be grown under trees or near large hedges. Competition for nutrients and moisture from the soil can cause a problem for them.

These plants will do well when planted in areas with good drainage and watered regularly. It is best to water the soil around the plant rather than the plant itself. This helps to prevent disease. Fertilizer is recommended in the spring as new growth appears. Mulch will help keep the soil around the plant cool and retain moisture. 

Tall Phlox A Hardy Perennial for Colorful Landscaping

Tall Phlox grows from the District of Columbia to the panhandle of Florida. When the blooms start to fade, removing them will help keep the blooms the color initially chosen. After the first blooms are gone, fertilizing again can get them to bloom twice.

This Is How Your Plants Will Look upon Delivery

Planting bare-root perennials is best in any season if they are dormant; we only sell dormant plants. Planting them year-round is also excellent if you can get dormant perennials. When your bare-root perennials arrive, soak the roots in water for a few hours to rehydrate them. Lant by digging a hole wide enough to spread the roots comfortably and deep enough to place the top portion crown (where the roots meet the stem) at or slightly above ground level. Position the plant in the hole, backfill with native soil, and gently firm the soil around the roots—water well after planting to settle the soil around the plant and eliminate air. Apply a 2-3 inch layer of mulch to keep weeds at bay and moisture locked in, keeping the mulch away from the crown. Irrigate plants regularly during the first few weeks of drought; never water in full sun, and water late in the evenings to ensure the roots are established well. Fertilize sparingly in the first year, using a balanced, slow-release fertilizer in subsequent years as needed.

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