Species

Crocosmia x crocosmiifloraMontbretia

5 other cultivars

perennial

Masonorum Mason's Crocosmia

Crocosmia x crocosmiiflora 'Masonorum'

The Story

Plant Bio

Crocosmia x crocosmiiflora 'Masonorum' is known for its striking sword-like leaves and vibrant orange tubular flowers that attract pollinators.

This cultivar is particularly noted for its tall, arching stems of fiery orange-red, upward-facing flowers, making it a standout in garden displays.

Uses & Benefits:

Bright, fiery flowers add vibrant color and height to garden borders and cut flower arrangements.

Provides natural screening and height in mixed borders.

Attracts pollinators like bees and butterflies, supporting local ecosystems.

SpeciesCrocosmia x crocosmiifloraMontbretia

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

South Africa

Toxicity

No known toxicity, but corms may cause mild stomach upset if ingested.

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck corms 4-6 inches deep in well-draining soil in spring.
Water regularly during the growing season for vibrant blooms.
Fertilize with a balanced 10-10-10 fertilizer in early spring.
Stake tall varieties to prevent wind damage.
Divide clumps every 3-4 years in early spring or fall.
Remove spent flowers to encourage more blooms.

Pro Tip

Plant in full sun for best flowering and ensure good drainage to prevent rot.

Keep It Thriving

Care Guide

Do

Water consistently during active growth 🌱
Apply mulch to retain moisture and suppress weeds
Fertilize early in the season for vigorous growth
Stake tall cultivars to support stems

Don't

Avoid overwatering to prevent bulb rot ❌
Don’t plant in heavy, poorly-drained soil
Refrain from cutting back foliage until it yellows naturally
Never disturb dormant bulbs unnecessarily

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Plant
Spring Cleanup
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tall, colorful border plantVibrant focal point in garden bedsCut flower arrangements with fiery orange blooms

Companion Plants

Salvia Liatris Echinacea RudbeckiaOrnamental grasses

Multiply

Propagation Methods

Good to Know

Common Questions

Masonorum Mason's Crocosmia questions

What zones can Masonorum Mason's Crocosmia grow in?

Masonorum Mason's Crocosmia is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Masonorum Mason's Crocosmia deer resistant?

Yes — Masonorum Mason's Crocosmia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Masonorum Mason's Crocosmia bloom?

Masonorum Mason's Crocosmia typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Masonorum Mason's Crocosmia need full sun?

Masonorum Mason's Crocosmia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Masonorum Mason's Crocosmia drought tolerant?

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