Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027

Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027
Infographic explaining and showing dormancy in shrubs.
A size chart showing 2 different options for Shrub Plants: Quart (5-8" plant height, 4.5" pot width, 5" pot height); 1 Gallon (6-24" plant height, 6.5" pot width, 7.13" pot height).
Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027
Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027
Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027
Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027

Ripple Effect™ Summersweet (Clethra alnifolia) | Proven Winners® New Variety 2027

You must select Size and Ship Week to view correct pricing and availability.

You can only choose one Ship Week per order for all plants in order to check out.
Regular price $20.99
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  • In stock
  • Inventory on the way

All Preorders ship during selected Ship Week. All Ships Now Annuals and Indoor Plants will ship same day on Mondays and Tuesdays by 12pm EST. All Ships Now Perennials, Shrubs, and Hardgoods will ship next day Monday-Friday by 2pm ET.

A fountain of flowers and fragrance, Ripple Effect™ summersweet quickly became a standout, celebrated for its delightful habit of blooming again and again. In summer, spires of sweetly scented white flowers shimmer against dark green foliage, drawing in bees, butterflies, and every pollinator passing by. As the season cools, the leaves shift into a lovely blend of fall color, extending its charm into autumn. With its dense, compact habit, this native clethra nestles perfectly into foundation plantings, mixed borders, and any garden designed for pollinators or wildlife.

  • 3-5 feet tall and 3-4 feet wide at maturity
  • Hardy in zones 4-10, be sure to check your USDA zone to ensure success
  • Plant in part to full sun (4+ hours daily)
  • Space plants 3-4 feet apart for best results
  • Produces fragrant white flowers during summer
  • Maintains green foliage spring to fall
  • Blooms on new wood
  • Great for borders, edges, low hedges, mass plantings, focal points, naturalizing, wildlife gardens
  • Attracts bees, butterflies
  • Compact habit, fall interest, clay tolerant, salt tolerant, native to North America
  • Shrubs shipped Nov-Apr will arrive dormant; shrubs shipped Apr-Oct will arrive green or in bloom

Care: Fertilize with Proven Winners Continuous Release Plant Food in spring and mid-summer. Prune to shape in the spring if you'd like, but doesn't require much pruning.

Shipping Info:

  • Enjoy free shipping on orders over $175
  • Size at shipping varies by the season and plant
    • Quart shrubs are 5-8 in tall and 6 months to 1 year old at shipment
    • 1 Gallon shrubs are 6-24 in tall and about 1 year old at shipment

Read our guide to get started with planning a garden

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