Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
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DescriptionKickin® 'Lilac Blue' New England Aster (Symphyotrichum novae-angliae) adds a splash of color to your garden late in the season. Your garden will be buzzing with local pollinators, including bees and butterflies! This native perennial has a full, bushy habit that is naturally compact, making them perfect for borders or containers. They're generally very low maintenance and easy to care for, so they're perfect for beginners. No trimming or shaping is required to keep them looking full and neat! All you have to do is sit back, relax, and enjoy the long-lasting blooms.DetailsBotanical name:Symphyotrichum novae-angliae 'Lilac Blue' Common name: New England aster Zone: 5-9 Sun exposure: Sun (> 6 hours sun) Height x width: 2 - 3 ft high and wide Flower color: Lilac blue Foliage color: Green Bloom time: Late summer-fall Features: Rain gardens, rabbit & deer resistant, native, heat tolerant, ground covers, fall color cold tolerant Uses: Accent, border, container gardening, cottage gardening, edging, ground cover, massing, pollinator garden, rock garden, small spaces, underplanting How To GrowSoil: Average soil. Very tolerant. Richer soils will generally yield taller plants. Light: Sun Water: Average water requirements. Water more often in extreme heat. Some asters are moisture-sensitive; if your plants have too much moisture or too little moisture, they will often lose their lower foliage or not flower well. Spacing: 1-1.5 ft apart Fertilizing: Not necessary, but a light application of slow-release fertilizer every spring should be more than adequate. Winterizing: Cut asters back in winter after the foliage has died. Avoid wet, overwintering conditions. Maintenance & pruning: Pinch back and divide like mums for best display. Pinching yields better branching and more flowers but isn't mandatory for success. Can be divided every 2-3 years in spring. Remove spent blooms to prevent reseeding.
Your Questions About Building a Rain Garden, Answered
Rain gardens have taken the horticultural industry by storm, no pun intended. Here, Great Garden Plants answers all your questions about designing, planting, and caring for rain gardens.