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Pre-order your plants now for spring shipping

Hibiscus SUMMERIFIC® 'Holy Grail'


Will begin shipping Apr 5th 2021 depending on your hardiness zone and plant readiness. If you have a preferred ship date please let us know in the order comments.

Common Name:
Rose Mallow
Plant Type:
Sun to Part Sun
Hardiness Zone:
Bloom Color:
Bloom Time:
Garden Height:
4-5 Feet
Garden Spread:
4-5 Feet
  • Huge, dinner plate-sized flowers
  • Dark, purple-black foliage
  • Great in wet areas
  • Begins shipping in June

This is a standout performer in the garden! 'Holy Grail' adds a wonderful richness to the garden with its almost black, oval shaped foliage. The incredibly large flowers are 8" - 9" across and deep red in color. These blossoms give way to bright green calyxes that contrast the dark folaige nicely. U.S. native hybrid.

Uses: Bogs, Borders, Cottage Gardens, Landscapes, Naturalizing, Rain Gardens, Specimen
Nature Attraction: Bees, Butterflies
Critter Resistant: Deer
Notable Features: Large Flowers, Rapid Growth, Heat Tolerant, Native
Growth Habit: Upright, Bushy

Homeowner Growing Tips: Plant in moist, well-drained soil in full sun. Keeping the plants well-watered will result in larger flowers and lush foliage. Deadhead to improve appearance of the plant. Mulch for protection in winter. Cut back remaining stems to 3" - 4" in spring before new growth emerges. Hibiscus emerge late in spring, so don't be alarmed if you don't see it right away. It will grow quickly and soon make up for its late start. Apply a balanced fertilizer after growth begins. Watch for Japanese beetles that like to eat this plant.

Reviews (4)

  • It it quite terrific!

    Posted by zintis muiznieks on Oct 19th 2020

    Planted for a client in Maplewood NJ, she's loving it!

  • Successful first Season

    Posted by Lauri P on Oct 18th 2020

    These arrive not in the best condition. The shipper left the box upside down and the plants pretty much arrived as loose dirt and broken limbs. I transferred them to pots and they quickly rebound. When I say quick, I mean just that. In a matter of days these beauties doubled in size with new growth. Within a month there were buds which blossomed into the most beautiful flowers. I even dried a few and made pitchers of Hibiscus Tea. I can’t say enough how pleased I was with this purchase and I will buy again.