perennialN. America Native

Tall Goldenrod

Solidago altissima

The Story

Plant Bio

Solidago altissima, the tall goldenrod, is an upright herbaceous perennial native to North America that reaches heights of two to six feet, expanding into dense colonies via creeping rhizomes. The lance-shaped, rough-textured leaves line strong central stems that terminate in large, plume-like clusters of dark yellow flowers from summer through fall.

This species is distinguished by its strongly three-nerved, finely serrated leaves that are rough on the upper surface and short-hairy underneath. Unlike wind-pollinated weeds, its heavy, sticky pollen is carried by insects, making it a vital late-season resource for native bees and butterflies rather than a cause of hay fever.

Uses & Benefits:

Ornamental UsesProduces dense, plume-like golden-yellow flower clusters that provide late-season color in wild gardens.
Practical UsesHighly adaptable to poor, clay, or dry soils, making it excellent for stabilizing banks and colonizing difficult sites.
Ecological BenefitsServes as a critical late-season keystone resource for native bees, butterflies, and beneficial wasps, while dead stems offer nesting cavities.

Essentials

At a Glance

Plant Type

Perennial

Height

71"

Width

35"

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8, 9, 10

Water

Low to Moderate

Humidity

High

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

Bloom period

Summer – Fall

J
F
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A
M
J
J
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S
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In flower about 6 months of the year

Planting

How to Grow

  1. Select a planting site in full sun to partial shade with well-drained soil.
  2. Dig a hole twice the width of the root ball and set the plant at its original container depth.
  3. Water thoroughly after planting to settle the soil around the roots.
  4. Space multiple plants two to three feet apart to accommodate their rhizomatous spread.

Pro Tip

Skip fertilizer entirely; excess soil nutrients trigger rapid, weak stem growth that flops over and requires staking.

Keep It Thriving

Care Guide

Do

  • Cut stems back to ground level in late winter or early spring.
  • Deadhead spent flower plumes in late fall if you want to limit self-seeding.
  • Divide dense root clumps every three to four years in spring to maintain vigor.

Don't

  • Do not apply fertilizer, as high nutrient levels cause weak stems that flop.
  • Do not plant in poorly drained soils where standing water can cause root rot.
  • Avoid overhead watering to minimize the risk of powdery mildew on the foliage.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deadhead
Divide
Pest Check
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower gardensNaturalized areasPollinator gardensClay soil plantingsErosion control on slopes

Multiply

Propagation Methods

Good to Know

Common Questions

Tall Goldenrod questions

What zones can Tall Goldenrod grow in?

Tall Goldenrod is hardy in USDA Zones 5–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Tall Goldenrod bloom?

Tall Goldenrod typically blooms in summer through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Tall Goldenrod need full sun?

Tall Goldenrod does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Tall Goldenrod drought tolerant?

Yes — once established (usually after the first full season), Tall Goldenrod handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Grow Tall Goldenrod with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.