North America Non-native Plant

Paraserianthes

Botanical name: Paraserianthes

USDA symbol: PARAS

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Paraserianthes: An Exotic Shrub for Warm-Climate Gardens If you’re looking to add some tropical flair to your garden, you might have come across paraserianthes. This unique shrub brings an exotic touch to landscapes in warmer regions, though it’s not without its considerations for the thoughtful gardener. What is Paraserianthes? Paraserianthes ...

Paraserianthes: An Exotic Shrub for Warm-Climate Gardens

If you’re looking to add some tropical flair to your garden, you might have come across paraserianthes. This unique shrub brings an exotic touch to landscapes in warmer regions, though it’s not without its considerations for the thoughtful gardener.

What is Paraserianthes?

Paraserianthes is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13 to 16 feet in height. What makes this plant stand out is its distinctive growth pattern—while most shrubs have several stems arising from near the ground, paraserianthes can sometimes surprise you by growing taller or developing a single stem under the right environmental conditions.

This isn’t a plant you’ll find growing wild in North American forests, though. Paraserianthes is a non-native species that has found its way into the United States and now reproduces on its own in the wild without human intervention.

Where Does Paraserianthes Grow?

In the United States, you’ll find paraserianthes growing in Arizona and California, where the climate suits its needs. These warm, often arid regions provide the conditions this exotic shrub prefers.

Should You Plant Paraserianthes?

Here’s where things get interesting for the conscientious gardener. Since paraserianthes is non-native and already establishing itself in the wild, you might wonder whether it’s a good choice for your landscape. The answer isn’t black and white.

On the plus side, this shrub can add unique texture and form to your garden. However, as a non-native species, it doesn’t provide the same ecological benefits as native plants. If you’re passionate about supporting local wildlife and ecosystems, you might want to consider native alternatives that offer similar aesthetic appeal.

Native Alternatives to Consider

Before you set your heart on paraserianthes, consider these native options that might give you a similar look while supporting local ecosystems:

  • Desert Willow (Chilopsis linearis) – offers delicate, orchid-like flowers
  • Fairy Duster (Calliandra eriophylla) – provides fluffy, bottlebrush-like blooms
  • Chuparosa (Justicia californica) – attracts hummingbirds with tubular red flowers

Growing Paraserianthes Successfully

If you do decide to grow paraserianthes, here’s what you need to know to keep it happy:

Location and Climate: This shrub thrives in the warm climates of USDA zones 9-11, which explains its success in Arizona and California. Make sure you’re in an area with mild winters and warm summers.

Soil Requirements: Well-draining soil is crucial for paraserianthes. These plants don’t appreciate wet feet, so avoid areas where water tends to pool after rain or irrigation.

Sunlight: Full sun exposure will give you the best growth and flowering performance from your paraserianthes.

Watering: Once established, paraserianthes is quite drought-tolerant, making it suitable for water-wise gardens. During the establishment period, provide regular watering, then gradually reduce frequency as the plant matures.

Care and Maintenance

One of the appealing aspects of paraserianthes is its relatively low maintenance requirements. Here are some care tips:

  • Pruning is minimal – just remove dead or damaged branches as needed
  • Watch for any signs of aggressive spreading, given its non-native status
  • Fertilizing is rarely necessary in good soil
  • Monitor for any unusual pest or disease issues

The Bottom Line

Paraserianthes can be an interesting addition to warm-climate gardens, especially if you’re drawn to its unique form and exotic appeal. However, as environmentally conscious gardeners, we should always weigh the benefits of non-native plants against the incredible value of native species for local wildlife and ecosystem health.

If you do choose to plant paraserianthes, enjoy its distinctive character while also considering adding some native plants to your landscape mix. This way, you can have the best of both worlds – the unique beauty of exotic plants and the ecological benefits of natives working together in your garden.

Paraserianthes

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Paraserianthes I.C. Nielsen - paraserianthes

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA