Easy care Volcano phlox can provide months of color with very little care. Here are a few tips for getting the most from your Volcano phlox.
Phlox and other perennials need space for the air to flow around them a bit and Volcano is no exception. If your plants have multiplied over the last year or so, divide them so that there’s at least 16-20 inches between each plant to help their natural tolerance to mildew. Volcano phlox are generally more compact than other phlox but it’s not unusual for a single plant to develop 15-20 stems, providing loads of blooms.
To get staggered and longer flowering times, you can pinch back either a portion of a single Volcano phlox plant, or if you have multiple plants you can pinch back some plants while leaving others to grow. Simply cut or pinch back each stem by about 2-4 inches. The pinched back plants will flower a little later than the others.
Some garden designers suggest cutting your phlox back at an angle, cutting back the lowest on the front branches and then moving up and back in diagonal manner.
Because they’re such prolific bloomers, Volcano phlox need to be fed well, preferably with a time-released plant food or a general flowering plant food. Feed in early spring and then throughout the season for optimal blooms and plant health.
Deadheading for multiple bloom cycles
Unlike many phlox paniculata, Volcano phlox will re-flower several times throughout the growing season if deadheaded (blossoms cut off after blooming). Here in Vermont we often get 3 bloom cycles, starting in mid-June and lasting through the first heavy frost.
Volcano in the garden
Volcano phlox make great garden companions with daylilies, ornamental grasses, Sedum Autumn Joy, coreopsis and other perennials. If you like single swaths of color, plant Volcano Pink with pink echinacea/cone flower, pink dianthus, Flower Carpet Pink Supreme, and perhaps some pink annuals like geraniums or begonias.
If you’re growing Volcano phlox, we’d love to hear how it’s performing in your garden!