perennial

Mask Flower

Alonsoa meridionalis

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

South America

Toxicity

Non-toxic

The Story

Plant Bio

Alonsoa meridionalis is known for its vibrant orange flowers that attract pollinators. It is particularly noted for its heat tolerance and ability to thrive in well-draining soils.

Bloom Period:

EarlyLate

Uses & Benefits:

Alonsoa meridionalis offers vibrant purple blooms that cascade over containers or garden edges, adding lively color.

Its trailing habit makes it excellent for hanging baskets and window boxes.

Provides nectar for pollinators like bees and butterflies, supporting local biodiversity.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings regularly to maintain humidity.
Water consistently during active growth, avoiding waterlogging.
Apply a balanced fertilizer every 4 weeks during the growing season.
Pinch back stems to encourage bushiness in mid-summer.
Mulch around base to retain moisture and suppress weeds.

Pro Tip

Use a light, well-draining soil mix and provide full sun for best flowering.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist but not soggy 🌱
Provide full sun for optimal growth
Pinch back to promote bushier plants
Fertilize monthly during the growing season

Don't

Avoid overwatering to prevent root rot ❌
Don’t plant in deep shade, it needs full sun
Refrain from using heavy, clay soils without amendment
Don’t forget to prune after flowering

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Pinch

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright, trailing border plantWildflower meadow accentContainer centerpiece with cascading blooms

Companion Plants

Lobelia Verbena Salvia Coreopsis Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Mask Flower questions

What zones can Mask Flower grow in?

Mask Flower is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Mask Flower deer resistant?

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

When does Mask Flower bloom?

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

Does Mask Flower need full sun?

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