Salal
Gaultheria Shallon
Gaultheria shallon, commonly known as Salal, is a versatile evergreen shrub native to the Pacific Northwest. Its attractive foliage and edible berries make it a popular choice for gardens and landscaping.
Everything it needs
9 essentials at a glance
Watering
Gaultheria shallon prefers consistently moist soil, especially during its growing season in spring and summer.
Water the plant deeply once a week, allowing the top inch of soil to dry out between waterings. In the fall and winter, reduce watering to every 10-14 days. Signs of over-watering include yellowing leaves and root rot, while under-watering can lead to wilting and browning leaf edges.
Light
Salal thrives in partial shade to full shade, making it ideal for woodland gardens or under tree canopies.
It prefers 4-6 hours of indirect sunlight daily and can tolerate dappled light. Direct sunlight can scorch its leaves, so ensure it’s placed in a location that mimics its natural habitat.
Soil
This plant prefers acidic, well-draining soil with a pH range of 5.0 to 6.5.
A mix of peat moss, pine bark, and perlite is recommended for potting. Good drainage is crucial to prevent root rot, so ensure pots have adequate drainage holes.
Humidity
Gaultheria shallon enjoys moderate humidity levels, around 40-60%.
To increase humidity, mist the leaves regularly or place a humidity tray filled with water and pebbles beneath the pot. Signs of low humidity stress include browning leaf tips and leaf drop.
Temperature
The ideal temperature range for Salal is 60-75°F (15-24°C).
It is hardy in USDA zones 7-9 and can tolerate brief periods of frost. Protect the plant from extreme heat and cold by providing shade during hot summers and mulch during winter.
Fertilizing
Use a balanced, slow-release fertilizer with an NPK ratio of 10-10-10.
Fertilize every 6-8 weeks during the growing season, and reduce or stop fertilizing in the fall and winter. Signs of nutrient deficiency include yellowing leaves and stunted growth.
Pruning
Prune Salal in early spring to maintain its shape and remove any dead or damaged branches.
Use sharp, clean pruning shears to avoid injury to the plant. Deadheading is not necessary, but removing spent flowers can encourage new growth.
Repotting
Repot Gaultheria shallon every 2-3 years or when the roots become pot-bound.
Choose a pot that is 1-2 inches larger in diameter than the current one. Signs it needs repotting include roots growing out of the drainage holes and stunted growth. To repot, gently remove the plant from its pot, loosen the roots, and place it in fresh potting mix.
Propagation
Propagation can be done through stem cuttings or division.
For stem cuttings, take 4-6 inch cuttings in late spring, dip the cut end in rooting hormone, and plant in a moist potting mix. Keep the cuttings in a warm, humid environment until roots develop, usually within 4-6 weeks. Division can be done in early spring when the plant is actively growing.
When it's unhappy
Yellow leaves
Why it happens
This can be caused by over-watering or nutrient deficiency.
How to fix it
Check the soil moisture and adjust watering accordingly. Consider fertilizing if nutrient deficiency is suspected.
Root rot
Why it happens
Over-watering and poor drainage can lead to root rot.
How to fix it
Ensure proper drainage and reduce watering frequency. If root rot occurs, remove affected roots and repot in fresh soil.
Browning leaf tips
Why it happens
This is often a sign of low humidity or under-watering.
How to fix it
Increase humidity by misting the plant or using a humidity tray. Ensure consistent watering.
Wilting
Why it happens
Wilting can indicate under-watering or extreme heat stress.
How to fix it
Check soil moisture and water thoroughly if dry. Provide shade during hot weather.
Leaf drop
Why it happens
Leaf drop can occur due to sudden changes in temperature or humidity.
How to fix it
Maintain stable environmental conditions and avoid placing the plant near drafts or heat sources.
Care through the year
Spring
In spring, prune any dead or damaged branches and begin regular watering as the plant comes out of dormancy. Fertilize with a balanced slow-release fertilizer to promote new growth.
Summer
During summer, ensure consistent watering, especially during dry spells. Monitor for pests and diseases, and provide shade if temperatures soar.
Fall
In fall, reduce watering as the plant prepares for dormancy. Mulch around the base to protect roots from frost and maintain soil moisture.
Winter
In winter, keep the plant in a sheltered location to protect it from harsh winds and frost. Water sparingly, allowing the soil to dry out between waterings.
Toxicity & Safety
Salal is non-toxic to pets and children. However, ingestion of large quantities may cause mild gastrointestinal upset. The berries are edible but should be consumed in moderation.
Good to know
Why are my Salal leaves turning yellow?
Yellowing leaves on Gaultheria shallon can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
How often should I water my Salal?
Water your Salal once a week during the growing season, allowing the top inch of soil to dry out. In fall and winter, reduce watering to every 10-14 days.
What type of soil is best for Salal?
Salal prefers acidic, well-draining soil with a pH of 5.0 to 6.5. A mix of peat moss, pine bark, and perlite works well for potting.
Can I grow Salal indoors?
Yes, Salal can be grown indoors as long as it receives adequate indirect light and humidity. Ensure it is placed in a cool area away from direct sunlight.
How do I propagate Salal?
You can propagate Salal through stem cuttings or division. Take cuttings in late spring, use rooting hormone, and keep them in a warm, humid environment until roots develop.
Is Salal toxic to pets?
No, Salal is non-toxic to pets and children. However, large quantities may cause mild gastrointestinal upset.
What are the best companion plants for Salal?
Companion plants for Salal include Rhododendron macrophyllum, Vaccinium ovatum, and Arctostaphylos uva-ursi, which thrive in similar conditions.
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