White Sagebrush

leucophyllum candidum

Also known as: ["Texas Sage","Barometer Bush"]

Family: Scrophulariaceae Genus: Leucophyllum Category: Shrubs

Overview

A small evergreen shrub native to arid regions of the southwestern United States and Mexico, known for its silvery foliage and lavender flowers that bloom after rains.

Benefits & Perks

["drought tolerant","fragrant flowers","wildlife attractant (bees, butterflies, birds)"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Lamiales
Family: Scrophulariaceae
Genus: Leucophyllum
Botanical Name: Leucophyllum candidum

Plant Characteristics

Basic Information
  • Category: Shrubs
  • Suitable Location: outdoor garden bed in arid or semi-arid regions, or as a container plant in full sun
  • Suitable For:
    Busy People (low Maintenance) Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–35°C"}
  • Hardiness: {"zones":"8–11"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent root rot.
  • Soil Type: Well-draining, sandy or loamy soil with some organic matter.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: high
  • Pruning Frequency: Annually in late winter or early spring before new growth begins.
  • Pruning Intensity: Moderate; remove up to one-third of old growth if needed.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); tolerates intense summer sun but benefits from some afternoon shade in extreme heat.

Sunlight Tolerance Tips:
Acclimate new plants gradually to full sun to prevent scorching; in hot climates, provide light shade during peak afternoon hours; ensure good air circulation to prevent sunburn.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor drainage or incorrect soil conditions.

Care Requirements

Care Difficulty
easy

moderate

Sunlight

full sun

Full sun is essential; avoid deep shade; rotate plant for even growth.

Watering

every 7–10 days during active growth, every 14–21 days in winter

Water thoroughly but infrequently to encourage deep root growth; allow soil to dry between waterings; avoid overwatering, especially in winter.

Soil

well-draining, sandy or loamy soil with low organic content

pH: Slightly alkaline to neutral (pH 6.5–7.5).

Ensure excellent drainage; avoid heavy clay soils; amend with sand or perlite if needed.

Temperature

Thrives in warm temperatures (65–85°F / 18–29°C); tolerates heat well; prefers mild winters but can withstand brief cold snaps.

Protect from frost; water deeply in heat; avoid sudden temperature swings.

Fertilizing

every 2–3 months during spring and summer with balanced, slow-release fertilizer

Fertilize only in spring; use a balanced formula; avoid over-fertilization.

Propagation

Methods

Stem cuttings; semi-hardwood cuttings root most reliably.

Step-by-Step Propagation Guide
  1. Take 4–6 inch cuttings.
  2. Remove lower leaves.
  3. Dip in rooting hormone.
  4. Plant in medium.
  5. Keep moist and warm.

Best Time: Late spring or early summer when the plant is actively growing.

Environment

Warm (70–80°F / 21–27°C), humid environment with bright indirect light.

Medium

Well-draining mix of perlite and peat moss or cactus mix.

Hormone

Rooting hormone is recommended to improve success rates.

Timeline

Roots typically form in 4–8 weeks; establish in new pot after 3–4 months.

Tools Needed

Pruning shears, rooting hormone, small pots, well-draining medium.

Quick Tips

Use semi-hardwood cuttings; keep consistently moist; provide bottom heat if possible.

Pruning & Repotting

Pruning Guide
Method

Selective thinning and heading back to shape the plant.

Pruning Plan

Prune to maintain shape, encourage bushiness, and remove dead or overgrown branches.

Tools

Pruning shears, loppers (for larger branches), gloves.

Checklist

Sterilize tools; prune dead/damaged branches; shape as desired; clean up debris.

Repotting Guide
Best Season

Early spring before active growth starts.

Pot Size

One size up (e.g., from 4-inch to 6-inch pot); avoid excessive pot size increase.

Method

Remove plant gently; trim any circling roots; repot in fresh, well-draining soil with a slightly larger pot.

Suggestions

Repot only when root-bound or every 2–3 years; prefers slightly crowded roots.

Checklist

Choose appropriate pot; prepare fresh soil; trim roots if needed; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture before watering; water deeply; ensure drainage; adjust frequency seasonally.

How to Apply Water Properly

Water at the base of the plant, ensuring moisture reaches the root zone; water early in the morning to minimize evaporation; ensure excess water drains away to prevent root rot.

Pro Tip: Use a soaker hose or drip irrigation to deliver water directly to the roots, reducing waste and leaf wetness.
Watering Schedule Tips

Water deeply once every 7–10 days during active growth in spring and summer; reduce frequency to every 2–3 weeks in fall and winter. Adjust based on rainfall and soil moisture retention.

Soil Improvement

Add perlite or coarse sand to improve drainage; incorporate compost for organic matter.

Temperature Stress Management
Signs of Temperature Issues

Chlorosis or leaf drop in excessive cold; wilting or scorched leaves in extreme heat.

Cold Stress

Prolonged cold temperatures (below 20°F / -6°C) can damage or kill the plant; growth slows significantly in cool conditions.

Solution: Protect with frost cloth or move to a sheltered location in winter; avoid planting in areas prone to prolonged freezing.

Hot Stress

Excessive heat can cause leaf scorch, wilting, or reduced flowering; water stress may exacerbate heat damage.

Solution: Provide light afternoon shade in extreme heat; water deeply and mulch to retain soil moisture; ensure good air circulation.

Fertilizing Guide
Fertilizing Checklist

Use balanced fertilizer; apply in spring; avoid frequent feeding.

Fertilizing Method

Use a balanced, slow-release fertilizer in early spring; avoid high-nitrogen formulas; fertilize sparingly, as the plant is not heavy feeder.

Common Problems & Solutions

Yellow leaves in Leucophyllum candidum may indicate nutrient deficiencies, overwatering, or pest infestations, affecting the plant's overall health and photosynthetic efficiency.

Wilting in Leucophyllum candidum can be caused by water stress, either due to drought or overwatering, leading to reduced turgor pressure and potential root damage.

Leaf spots on Leucophyllum candidum may be caused by fungal or bacterial pathogens, leading to reduced photosynthesis and potential leaf drop.

Rotting, particularly root rot, can occur in Leucophyllum candidum if the soil is excessively moist, leading to decay of root tissues and eventual plant death.

Toxicity Warning

Cats
Non-toxic

Leucophyllum candidum is not considered toxic to cats. The plant does not contain known toxic compounds that would cause adverse physiological impacts upon ingestion by felines.

⚡ Toxic If:

if eaten

No specific safety precautions are required for cats interacting with this plant.
Dogs
Non-toxic

Leucophyllum candidum is not considered toxic to dogs. There are no documented cases or evidence suggesting that ingestion of this plant causes adverse effects in canines.

⚡ Toxic If:

if eaten

No specific safety precautions are required for dogs interacting with this plant.
Humans
Non-toxic

Leucophyllum candidum is not known to exhibit toxic effects in humans. The plant does not contain known toxic compounds that would cause adverse physiological impacts upon ingestion.

⚡ Toxic If:

if eaten

No specific safety precautions are required for human handling or consumption of this plant.

Frequently Asked Questions

Q: Does Leucophyllum candidum require frequent watering?

A: No, it is highly drought-tolerant and thrives with minimal water once established.

Q: Why are the leaves turning yellow?

A: Yellow leaves may indicate overwatering or poor drainage; ensure the plant is in well-draining soil.

Q: When does it bloom?

A: It typically blooms after periods of rain, often in late summer or fall.

Quick Reference
Family: Scrophulariaceae
Care: easy
Light: full sun
Water: every 7–10 days during activ
Suitable For: ["busy people (low maintenance)","outdoor landscapers","wildlife supporters (attracts bees, butterflies, birds)"]
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