Cat greenbrier (Smilax glauca)

Also known as: Whiteleaf greenbrier, Glaucous-leaved greenbrier

The Cat Greenbrier (Smilax glauca) is a native woodland vine found in the central and eastern United States. Its root structure gives it a notable resistance to fire.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Cat greenbrier

Lifespan

Perennial

Plant Type

Vine, Herb

Plant Height

2.5 m to 3.5 m

Spread

N/A

Leaf Color

Green White Variegated Red

Flower Size

2.5 cm

Flower Color

Yellow Green Gold

Images of Cat greenbrier

Quickly Identify Cat greenbrier

Blue-green tinted leaves with tendrils for climbing.

Small greenish-yellow flowers with 6 tepals and stamens.

Dark bluish-black berries in clustered groups.

2-4 inch oblong leaves with distinct vein patterns.

Slender green stem with weak prickles for climbing.

Scientific Classification of Cat greenbrier

Phylum

Vascular plants

Class

Monocotyledons

Order

Liliales

Family

Greenbrier

Genus

Prickly-ivy

Species

Cat greenbrier

Planting and Growing of Cat greenbrier

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Partial sun

Sunshine Duration

6-10 hours

Ideal Temperature

59-77℉

Soil Type

Potting Mix, Peat Mix

Soil pH

5.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Cat greenbrier?

For Smilax glauca, it is essential to water deeply until the soil is evenly moist but not soggy. Typically, providing approximately 500 ml per session should suffice, keeping the roots hydrated without drowning them.

What are the symptoms of an underwatered Cat greenbrier? ›

What should I do if my Cat greenbrier is not getting enough water? ›

What are the symptoms of an overwatered Cat greenbrier? ›

How to save an overwatered Cat greenbrier? ›

What Are the Sunlight Requirements for Cat greenbrier?

Sunlight Requirements: Partial sun, Full sun

Duration of light: 4 to 6 hours

Smilax glauca ideally prefers partial to full sunlight exposure. This lighting level allows for healthy photosynthesis, robust foliage development, and overall improved resistance to diseases, contributing greatly to its aesthetic appeal.

How much sunlight is ideal? ›

What are the solutions for inadequate light? ›

What benefits come from optimal lighting? ›

What Is the Ideal Temperature Range for Cat greenbrier?

Ideal Temperature: 59 ~ 77℉

The ideal temperature range for Smilax glauca is between 59°F and 77°F. This range supports optimal growth and photosynthesis while minimizing environmental stress on the plant. Staying within this range helps ensure the plant’s health and vigor.

What Soil is Best for Cat greenbrier?

Soil type: Sandy loam, Loam

Soil PH: 5.5 ~ 7.5

Smilax glauca thrives in well-drained soils, as this ensures that its roots do not become waterlogged which can lead to root rot. This soil condition helps the plant to sustain healthy root growth and uptake of essential nutrients. Although Smilax glauca is adaptable, a nutrient-rich soil can significantly enhance its growth and foliage quality. Providing a medium that is rich in organic matter ensures a steady supply of nutrients, supporting lush and robust plant growth. Maintaining moderate moisture levels in the soil is crucial for Smilax glauca. This balance prevents the roots from drying out or becoming too saturated, promoting consistent growth and reducing stress on the plant.

How to Fertilize Cat greenbrier?

Fertilizer type: Balanced

For Smilax glauca, the fertilizer amount should be carefully monitored. When using liquid fertilizers, dilute them to half-strength to prevent any potential damage to the roots. Slow-release fertilizers should be applied moderately; sprinkling a small handful around the base should suffice.

How to Prune Cat greenbrier?

Pruning Time: Spring, Summer, Autumn

Start by assessing the plant for any dead, diseased, or damaged stems. These should be removed first to promote healthier growth. Smilax glauca can spread aggressively, so cut back any excessively long or unruly vines. Focus on areas where the plant may be outcompeting others or becoming too dense. Once dead and excessive growth is managed, shape the plant according to your garden design. This involves trimming for symmetry and size, ensuring it fits harmoniously within your landscape. Finally, make sure to dispose of the clippings properly. Because of the thorns, it's advisable to bundle them securely or use a designated green waste bin to avoid harming anyone.

How to Propagate Cat greenbrier plant?

Propagate Time: Spring, Early spring, Late spring

Collect seeds from mature Smilax glauca berries in late autumn. Clean the seeds thoroughly to remove pulp residues, which can harbor pathogens.

Choose a healthy Smilax glauca stem and cut about 12 inches long. Ensure the cut is clean and slightly above a node to encourage root growth.

In spring, carefully dig up the plant and split its roots into several sections, each with at least one bud, to promote new plant growth.

More About Propagating Techniques→

How to Repot Cat greenbrier plant?

Repotting frequency: Every 2-3 years

Observe the roots; if they begin to circle the pot or poke through the drainage holes, it's time to repot. Additionally, stunted growth and rapid drying of the soil are key indicators that repotting is necessary.

Select a pot that's 1-2 inches larger in diameter than the current one. This allows adequate space for root expansion and prevents waterlogging, reducing the risk of root rot and promoting healthy plant growth.

Opt for a well-draining potting mix, ideally one containing perlite or sand. This ensures efficient water drainage and air circulation around the roots, essential for preventing root rot and maintaining robust plant health.