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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Description'Scarlet Fever' dianthus (or Dianthus barbatus) may resemble a tall garden phlox from afar, but as you get closer, you're welcomed by the unmistakable fragrance and charm dianthus offers. 'Scarlet Fever' bundles vibrant red flowers into large panicles that bloom in late spring and early summer. It grows on an upright habit, reaching as tall as 20 inches, ideal for the front or middle of mixed beds. Enjoy the flowers in cut arrangements, fresh or dried, for a pop of color indoors.
Dianthus is a pollinator-friendly perennial that is easy to grow, even for beginners. It's unbothered by deer and tolerant of heat, drought, and salt. Try planting it in patio containers, cottage gardens, and even rock gardens for a colorful display!DetailsBotanical name: Dianthus barbatus 'Scarlet Fever' Patent #: USPP 30,454 Common name: Dianthus, carnation, perennial sweet william Zone: 4 – 9 Sun exposure: Sun (6+ hours sun) to part sun (4-6 hours sun) Height x width: 20″ x 30″ Flower color: Red Foliage color: Blue-green Season of interest: Spring and summer Bloom time: Late spring, early summer Features: Rare & unusual, heat tolerant, fragrant, drought tolerant, deer resistant, container plants, cold tolerant, best beginners Uses: Accent, alpine and rock, container gardening, edging, ground cover, massing, slopes, rock garden, slopes, small spaces, cottage garden, pollinator garden How To GrowSoil: Dianthus aren’t particularly fussy about soil, though they do require good drainage. Light: Full sun is preferred; it can grow in part shade, though the blooms will not be as prolific. Water: Average water needs. Drought tolerant once established but should be watered regularly during periods of hot, dry weather. Spacing: 28 inches Fertilizing: Nothing special required; one application of garden fertilizer in early spring is sufficient. Winterizing: Remove all the dead and fallen plant matter to prevent the risk of rot or damage. Evergreen perennial may look a bit tatty coming out of harsh winters but will recover as spring begins. Maintenance & Pruning: Little to no pruning or maintenance needed. Though deadheading is not required, it will encourage additional flower production. Cut blooms as desired to use in arrangements.