Set plants 12 to 24 inches apart, depending on species. Choose a shady or partly shaded location, where the soil is rich, humusy and well-drained. D. x ‘Luxuriant’ can be grown in full sun also.
Plants should be watered during periods of drought. We recommend a summer mulch to help conserve moisture, as well as a protec tive mulch in winter. D. spectabilis tends to go dormant in midsummer, so plant a companion plant (i.e. Anemone vitifolia) and avoid accidentally digging up the plants. It is unlikely that division will become necessary, but if it does, divide in spring.
Tips for gardening in particularly hot, dry climates:
The dry, sparse appearance of bareroot perennials can be alarming to the novice gardener, but in reality ordering bare root is often the smarter choice. Foliage and blooms can be seductive, but the health and long-term potential of a plant truly lies in its roots. Bareroot plants have several advantages over plants in containers—bare roots are less likely to be harmed in the shipping process, their timing is easier to control, and they are field-grown for larger, healthier root systems. This why Wayside Gardens has had great success with bare root plants, and you can too!
It is safer to ship plants in bareroot form because there is no risk in harming new growth, and therefore the plant actually has a better chance of making it safely into the customer’s garden.
And thanks to refrigerated storage, the timing of bareroot perennials can be precisely controlled. “(Bareroot perennials) are dormant,” explains JPPA Lead Horticulturist Benjamin Chester, “But as soon as they leave the refrigerated storage they’ll begin breaking dormancy.” And once the plant ‘wakes up’, it is ready to begin the growing season in earnest, which means it will quickly catch up to the level of container plants.
The most important benefit of bareroot perennials is that they can be field grown rather than confined to containers. The bareroot Cherry Cheesecake Hibiscus pictured hereperfectly illustrates the difference between a field-grown perennial and a containerized one. Wayside Gardens used to offer this variety in a quart container, like the Monarda next to it. But the Hibiscus was simply too cramped in that space, so Wayside switched to growing it in the earth and selling it bare root. The result is a thick, fibrous mass of roots that used to fill up several cubic feet of soil and which, even in its bare, pruned form would be too large to fit back into the 1 Quart container. What a difference a little space makes! While small and slow-growing cultivars can start well in containers, large and vigorous cultivars need more room to stretch out and develop a solid root system.