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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DescriptionCaesar's Brother' Siberian iris (Iris sibirica) features some of our favorite springtime blooms! A rich and stunning deep purple, these flowers stand out in a sea of springtime pinks and yellows. Green-blue foliage grows in attractive clumps, looking gorgeous in the landscape. This worry-free perennial is very disease and pest resistant, making it perfect for those looking for something striking yet easy to care for.DetailsBotanical name:Iris sibirica 'Caesar's Brother Common name: Siberian iris Zone: 3 - 9 Sun exposure: Sun (6+ hrs/day), part sun (4-6 hrs/day) Height x width: 36-42"x 18-24" Flower color: Dark purple Foliage color: Green Season of Interest: Late spring Bloom time: Spring Features: Rabbit resistant, heat tolerant, drought tolerant, cold tolerant Uses: Accent, background, border, cottage garden, foundation planting, massing, naturalizing, rain garden, specimen, watersideHow To GrowSoil: Performs well in most soil types, and particularly enjoys soils with high nutrients. Light: Thrives in full to part sun and prefer afternoon shade in hot, southern zones. Water: They prefer consistent moisture conditions. Spacing: Space 18"- 24" Fertilizing: Can be fertilized in spring with an all purpose garden option. Maintenance and pruning: Remove spent blooms. Divide plants every four year if you see a reduction in flowering performance. Clean up old foliage in spring.
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.