The Ultimate Guide to Growing Sum and Substance Hosta: Tips for Spectacular Results

//

Robby

Hey garden lovers! Today I’m super excited to share everything I know about caring for one of my absolute favorite hostas – the magnificent Sum and Substance. After growing these beauties in my garden for years I’ve learned all the tricks to help them reach their full potential. Let me tell you, when grown right, these plants are truly show-stopping!

What Makes Sum and Substance Hosta Special?

Before we dive into care tips, let’s talk about why this hosta variety is so amazing:

  • Massive leaves reaching up to 28 inches long and 24 inches wide
  • Stunning chartreuse-yellow foliage that brightens shady spots
  • Impressive mature size – up to 6 feet wide and 3 feet tall
  • Beautiful pale lavender flowers on tall scapes in late summer
  • More sun-tolerant than many other hostas
  • Early spring emergence for extended seasonal interest

Essential Growing Requirements

Light Conditions

Sum and Substance is actually more sun-tolerant than most hostas but here’s what works best

  • Partial to full shade in most climates
  • Morning sun is okay (and can enhance leaf color!)
  • Avoid hot afternoon sun – it’ll scorch those beautiful leaves
  • More shade needed in hotter southern regions

Soil Needs

  • Rich, well-draining soil
  • pH between 6.5-7.5
  • Consistently moist but not waterlogged
  • Add plenty of organic matter when planting

Planting Your Sum and Substance

Here’s my step-by-step guide for getting these beauties established:

  1. Best Planting Times

    • Early spring
    • Early fall
    • Avoid planting during summer heat waves
  2. Planting Process:

    • Dig hole twice as wide as root ball
    • Plant at same depth as nursery container
    • Space plants 5 feet apart (they get huge!)
    • Water deeply after planting
    • Add 2-3 inches of mulch

Ongoing Care Tips

Watering Schedule

These big boys are thirsty! Here’s what I’ve found works:

  • Deep watering 1-2 times weekly
  • More frequent during heat waves
  • Water at soil level (avoid leaves)
  • Morning watering is best

Fertilizing

For optimal growth:

  • Apply balanced fertilizer in early spring
  • Feed every 4-6 weeks during growing season
  • Stop fertilizing by late August

Maintenance Tasks

  • Remove spent flower stalks
  • Clean up damaged leaves
  • Cut back foliage after first frost
  • Divide every 3-5 years if needed

Common Problems and Solutions

Pest Control

Keep an eye out for:

  1. Slugs & Snails:

    • Use beer traps
    • Copper tape barriers
    • Iron phosphate bait
  2. Deer:

    • Physical barriers
    • Deer repellent sprays
    • Plant protective companion plants

Disease Prevention

  • Ensure good air circulation
  • Avoid overhead watering
  • Remove infected leaves promptly
  • Use fungicide if needed

Landscape Design Ideas

I love using Sum and Substance as:

  • Dramatic focal points
  • Mass plantings for ground cover
  • Container specimens
  • Woodland garden anchors
  • Paired with contrasting plants like:
    • Dark-leaved heuchera
    • Japanese forest grass
    • Blue hostas
    • Astilbe

Winter Care

Even though these hostas are tough, I always:

  • Cut back dead foliage
  • Apply winter mulch
  • Keep soil slightly moist
  • Remove mulch in spring

My Personal Tips for Success

After years of growing these giants, here’s what I’ve learned:

  1. Don’t skimp on spacing – they need room!
  2. Be patient – they take 3-4 years to reach full size
  3. Morning sun really does enhance the leaf color
  4. Regular division isn’t necessary unless you want more plants
  5. They’re more drought-tolerant than you’d think once established

There ya have it, friends! Everything you need to know about growing these amazing hostas. Trust me, once you get the hang of their basic needs, Sum and Substance hostas are pretty easy to grow and will reward you with years of spectacular garden presence.

Got questions about growing Sum and Substance hostas? Drop ’em in the comments below – I’d love to help!

Happy gardening!

hosta sum and substance care

Your cart is empty

Hear what other happy gardeners had to say about this product and see customer-added photos and videos before you buy.

  • Hardiness Zones3-9
  • Mature Height36 inches
  • Flowering DateMid to late summer
  • Sun ExposurePartial Shade, Full Shade
  • Ship AsPREMIUM

More Things You’ll Love

We partner with expert horticulturalists who optimize our varieties for traits like uniqueness, fragrance, flavor and size.

From our 1,200-acre farm on the coast of Lake Michigan, our gardeners hand-prep and hand-package every plant to quick-ship right to your door.

At Spring Hill, we’re diligent about treating our plants with the utmost care–and have been for more than 175 years.

Each variety we offer is expertly cultivated to delight, inspire, and beautify your home. Youll find plants here you wont find anywhere else!

Hosta – Sum and Substance│Dutch-bulbs

FAQ

What is a sum & substance Hosta?

This variety was hybridized by renowned hosta breeder Paul Aden in the 1980s, It has won numerous awards thanks to its vigorous growth and dramatic presence, Sum and Substance hostas thrive when given suitable growing conditions. Here are the key factors to provide this variety:

Do Hosta Sum & Substance need sun?

Hosta Sum and Substance’ has large yellow-green leaves and delicate lilac flowers. It’s ideal for growing in a shady border or as part of a shady container display. Some hostas can handle sun, but Hosta Sum and Substance needs some to all shade because the sun can burn its leaves and stress the plant out because it needs moist soil.

How do you care for a hosta Sum & Substance?

Some hostas can handle sun, but Hosta Sum and Substance needs some to all shade because the sun can burn its leaves and stress the plant out because it needs moist soil. For best results, grow in partial to full shade, in rich, fertile, moist soil or compost. Add plenty of organic matter to the soil before planting. Mulch annually. Advertisement.

How big does a sum & substance Hosta grow?

Sum and Substance hostas grow to be quite large in good conditions, often reaching up to five feet wide and 3 feet tall. The individual leaves can each get about 18″ long and over a foot wide in the center. Be sure to plant this hosta in a location where it has room to spread and grow to its full mature size.

When should you plant a sum & substance Hosta?

The best time to plant a Sum and Substance hosta is in early spring or in the fall after the summer’s heat has peaked. This keeps the plants from getting burned by the sun and gives them adequate time to establish roots before the winter. Hostas grow best in well-drained, slightly acidic soil enriched with organic matter like homemade compost.

What is a sum and substance plant?

Sum and Substance is a consistent and reliable ornamental plant in the landscape with very low maintenance requirements. The Sum and Substance hosta is a very popular bright yellow-green large hosta variety. Sum and Substance specimens are very large hosta plants, producing a mound of leaves that can regularly spread out five feet wide.

Leave a Comment