How to Grow Hosta Sum and Substance
Hosta Sum and Substance
Hosta 'Sum and Substance'
shrubSum and Substance is a giant cultivar of Hosta known for its massive, chartreuse-gold leaves that can reach 10-12 inches long and 8-10 inches wide. This vigorous perennial forms a mound 24-30 inches tall and 48-60 inches wide, making it one of the largest hostas available. It's prized as a specimen plant and focal point in shade gardens.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8; performs best in cooler regions where leaf color remains vibrant
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Growth Stages
Establishment (Year 1)
3-4 months after plantingSmall shoots emerge in spring; plant focuses on root development; leaves are smaller than mature size
Water regularly to keep soil consistently moist; apply 2-3 inches of mulch around base (not touching crown); avoid fertilizing heavily; protect from foot traffic
Vegetative Growth (Years 2-3)
2-3 yearsPlant expands rapidly; leaves grow larger and more abundant; mound shape becomes more defined; foliage color intensifies
Maintain consistent moisture; apply balanced fertilizer in spring; divide clumps if desired; remove any flower spikes if you prefer to focus energy on foliage
Mature (Year 3+)
IndefinitePlant reaches full size with massive chartreuse-gold leaves; forms dense mound; produces abundant foliage with excellent color
Continue regular watering; apply slow-release fertilizer in spring; deadhead flowers for neater appearance; divide every 5-7 years to rejuvenate or propagate
Flowering
3-4 weeksTall scapes emerge above foliage in mid to late summer (July-August); bear small lavender-blue flowers arranged in loose racemes
Flowers are secondary to foliage; deadhead spent flowers to direct energy to leaf growth; leave some flowers if you want seeds for propagation
Dormancy (Winter)
3-5 months (varies by zone)Foliage dies back after first hard frost; plant enters dormancy; above-ground growth stops completely
Cut back dead foliage in late fall or early spring; apply 2-4 inches of mulch for winter protection; no watering needed during dormancy
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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and
Hand-pick in early morning or evening; use copper tape barriers around planting area; apply diatomaceous earth; beer traps; encourage beneficial predators like ground beetles
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No cure; prevent by sterilizing tools between cuts; remove infected plants; avoid overhead watering; purchase from reputable nurseries with virus-tested stock
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Remove affected leaves; avoid overhead watering; improve air circulation; no chemical control available; remove severely infected plants
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Hand-pick beetles in early morning; use floating row covers; apply neem oil or insecticidal soap; use pheromone traps away from hostas
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Install 6-8 foot fencing; apply deer repellent sprays; interplant with strongly-scented plants; use motion-activated sprinklers
Uses
Edible shoots and buds
CulinaryYoung hosta shoots and unopened flower buds can be harvested in spring and eaten raw in salads or cooked as a delicate vegetable similar to asparagus. In Japan, hosta buds are pickled and enjoyed as a seasonal delicacy. [source]
Specimen plant and landscape focal point
HouseholdSum and Substance's massive chartreuse-gold foliage makes it an outstanding architectural element in shade gardens, creating visual interest and drama. It serves as a living sculpture that draws the eye and anchors garden design. [source]
Floral arrangements and leaf pressing
CraftLarge hosta leaves can be pressed and dried for use in botanical crafts, pressed flower art, and dried arrangements. The distinctive shape and texture make them valuable elements in floral design. [source]
Pollinator support
WildlifeHosta flowers attract bees, butterflies, and other pollinators when allowed to bloom. The plant provides food resources for beneficial insects in shaded areas where flowering plants are limited. [source]
Traditional medicine
MedicinalIn traditional Asian medicine, hosta has been used to treat inflammation and support digestive health, though scientific research on its efficacy is limited. Use only under professional guidance. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Hostas are ornamental foliage plants, not typically harvested. However, hosta buds and young shoots can be harvested in spring for culinary use (similar to asparagus); harvest sparingly to avoid stressing the plant. Deadhead spent flower scapes in mid to late summer if desired for neatness.
Fun Facts
- 🌱 Sum and Substance was registered as a Hosta cultivar in 1980 and has won the prestigious Hosta of the Year award, making it one of the most celebrated hostas among gardeners.
- 🌱 The chartreuse-gold coloring is brightest when the plant receives some indirect morning light; in deep shade it may appear more green, but this actually helps protect it from sunburn.
- 🌱 A mature Sum and Substance plant can produce over 100 leaves in a single season, and individual leaves can persist for several years, creating a dense mound of long-lived foliage.
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