Irish-grown garden plants delivered across all 32 counties

Hosta ‘Sum and Substance’

Plantain Lily 'Sum And Substance'

Award Winner Good for cut flowers badge Hardiness H7

A giant hosta with enormous, rounded leaves that range from chartreuse to golden yellow depending on light. The foliage is thick, bold, and highly architectural, forming an impressive mound, with pale lavender flowers appearing on tall stems in summer.

SKU: HOST-44-Y

Carefully packed & shipped
Quality Guaranteed
Source:

Plant Details

Flowering Months

January, not a flowering month
February, not a flowering month
March, not a flowering month
April, not a flowering month
May, not a flowering month
June, not a flowering month
July, flowering month
August, flowering month
September, not a flowering month
October, not a flowering month
November, not a flowering month
December, not a flowering month

Size

Max Height
0.5 m — 1.0 m
Max Spread
0.5 m — 1.0 m
Growth Habit
Grows in tight bunches from base, forming rounded groups.

Planting Position

Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
North East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
Hardiness H7 (< −20 °C) Extremely hardy

Ideal Soil Conditions

Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Clay Loam
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Free draining
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Neutral

Plant Uses & Merits

Uses
  • Architectural
  • Patios / Courtyards
  • Containers
  • Flower Borders
  • Groundcover
  • Underplanting
Merits
  • RHS | Award Of Garden Merit
  • Good for Cut Flowers
Hosta ‘Sum and Substance’

Hosta ‘Sum and Substance’ Description

Hosta ‘Sum and Substance’ is a giant hosta valued for its enormous leaves, warm color, and bold landscape impact. It forms a massive mound of rounded chartreuse to golden foliage, with leaf color becoming brighter in filtered light or gentle morning sun. Grown in partial shade with moist, fertile soil and plenty of room, it becomes a dramatic focal point in woodland gardens, large borders, shaded courtyards, and foundation plantings. In summer, pale lavender flowers rise on tall stems above the foliage, adding height and seasonal interest. Thanks to its size and thick leaf substance, it also provides a strong architectural effect. For gardeners looking for a giant hosta with warmth, vigor, and unmistakable presence, Hosta ‘Sum and Substance’ is a classic choice.