Chinese Foxglove (Rehmannia glutinosa)

Chinese Foxglove

Rehmannia glutinosa

Its fleshy dewy leaves carry soft charm, a versatile herb valued for medicinal roots. Perennial herbaceous plant.

Partial sun
2/week
Moderate
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Plant Needs

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Sunlight Partial sun to dappled shade; avoid intense midday direct sun to prevent leaf scorch
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root ball to dry out completely
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Temperature Thrives in cool to temperate conditions; tolerates light frost down to 5°C, avoid prolonged heat above 30°C
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Characteristics

  • Leaf: Basal rosette of ovate, pubescent leaves with crinkled, slightly serrated margins
  • Flower: Tubular pale purple to pink blooms with spotted, hairy throats
  • Stem: Succulent, glandular-haired stems that exude a mild glutinous sap when broken
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Horticulturist's Insider Field Notes (No AI Fluff)

The Golden 'Finger Test' Rule

Never water on a strict calendar. Stick your index finger 2 inches into the soil. If it feels cool and damp, wait 2–3 days. If bone dry, water thoroughly until it drains from the bottom holes.

Empty the Saucer After 20 Minutes

The #1 houseplant killer is water sitting in the catch tray. Stagnant runoff water starves roots of oxygen and causes root rot.

Turn the Pot Every 2 Weeks

Houseplants naturally lean toward the nearest window light. Give the pot a quarter-turn biweekly to maintain balanced, symmetrical architecture.

Wipe the Dust Away

Dust on leaves acts like a heavy sunshade. Gently wipe broad foliage with a damp cloth monthly to maximize photosynthesis and air purification.

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Care Guide

Watering

Maintain even soil moisture; water when the top 1cm of soil feels dry

Fertilization

Diluted organic liquid feed every 2 weeks. Use balanced organic feed to support root and foliage development; avoid high-nitrogen fertilizers that may weaken root growth

Banana peel compost tea:Compost banana peels for 2–3 weeks to break down completely; dilute the tea 1:20 with water before applying as a root drench; discard solid debris to prevent pest infestations and odor
Pruning
  • Remove spent flower stalks after blooming to redirect energy to root growth
  • Trim yellowing or damaged basal leaves to improve airflow and reduce disease risk
  • Divide overcrowded clumps in early spring to promote healthy new growth and prevent root binding
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Pet & Human Toxicity & Emergency Guide

🟢 Pet-Safe (Non-Toxic to Cats & Dogs)

Pet Safety Verified: According to clinical veterinary databases (ASPCA), Chinese Foxglove (Rehmannia glutinosa) is non-toxic to both cats and dogs, making it an excellent choice for pet-friendly homes.

Pet Tolerance

Leaves, stems, and flowers contain no systemic toxins or hazardous oxalates; safe for curious puppies and kittens.

Mild Fiber Sensitivity

While non-toxic, excessive consumption of fibrous leaves may cause mild, temporary stomach upset or regurgitation.

Recommended Placement

Safe for low tables, living rooms, and active pet environments.

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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Chinese Foxglove (Rehmannia glutinosa):

Yellowing Leaves

Most commonly caused by overwatering or poor drainage. Ensure topsoil dries out between waterings and check for root ventilation.

Brown or Crispy Leaf Tips

Low ambient humidity, hard tap water minerals, or direct midday sunburn. Increase humidity and use filtered water.

Drooping or Wilting Foliage

Indicates dehydration or root damage from prolonged waterlogging. Inspect soil moisture and root firmness.

Common Pests (Spider Mites, Aphids)

Dry indoor air encourages pests. Wipe leaves with a damp cloth and treat with insecticidal soap or neem oil.

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Propagation & Repotting Guide

  • Taking Cuttings: During active spring or summer growth, take a healthy 4–6 inch cutting just below a node using clean shears.
  • Rooting Medium: Place cuttings in fresh water or moist perlite mix in bright, indirect light; refresh water weekly.
  • Potting Up: Transplant into well-draining potting mix once roots reach 2 inches in length (typically 3–5 weeks).
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Seasonal Care Calendar

  • Spring & Summer (Active Growth): Water thoroughly as topsoil dries; apply diluted balanced fertilizer monthly; encourage steady growth.
  • Autumn (Transition): Gradually reduce watering frequency as daylight hours shorten; discontinue fertilization.
  • Winter (Dormancy): Water sparingly only when soil is mostly dry; protect from cold window drafts; keep in warm room.
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Frequently Asked Questions

How often should I water my Chinese Foxglove?

Water thoroughly when the top 1–2 inches of soil feel dry. In active growth (spring/summer), water every 1–2 weeks; reduce significantly in winter.

Where is the best indoor location for Chinese Foxglove?

Position in bright, filtered indirect light (e.g., near an east or south-facing window with sheer curtains). Avoid harsh direct midday sun.

Is Chinese Foxglove toxic to pets?

ASPCA: Non-toxic to cats; no reported adverse effects from ingestion or contact

When should I repot my Chinese Foxglove?

Repot every 1–2 years in spring when roots outgrow the drainage holes or the soil depletes nutrients.

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Garden Uses & Culture

Culture: Valued in Traditional Chinese Medicine for its tonic properties, used to support kidney and liver health

Usage: Medicinal herb for regulated herbal preparations; low-growing ornamental ground cover in shaded garden beds

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