spoonleaf sundew Care (Drosera intermedia)

Drosera intermedia needs strong light to form healthy red traps and sticky dew.

• Provide 6–10 hours of direct sun daily outdoors, with at least 4–6 hours of gentle morning sun; light afternoon shade prevents leaf scorch in hot climates.
• Tolerates bright, very open partial shade, but plants grown with less than 4 hours of direct sun develop longer, weaker leaves and reduced dew.
• In summer, protect from reflected heat and metal surfaces; in winter, position so the spoonleaf sundew receives maximum low-angle sun to maintain vigor.

This bog species requires consistently wet, mineral-free conditions around its roots.

• Use rainwater, distilled, or reverse-osmosis water; avoid tap water with dissolved salts that can burn Drosera intermedia roots and reduce growth.
• Stand pots or trays in 1–3 cm of water so the soil stays saturated; never allow more than the top 0.5 cm to dry, even briefly, during active growth.
• In cooler fall–winter conditions, reduce water depth to 0.5–1 cm but do not let the medium dry; pale, limp leaves suggest underwatering, while sour odor and black roots suggest waterlogged, anaerobic soil.

This temperate sundew needs warm summers and a cool resting period to stay long-term healthy.

• For active growth, aim for 70–85°F (21–29°C) days and 55–70°F (13–21°C) nights; short heat spikes to 90°F (32°C) are tolerated if roots stay wet.
• In winter dormancy, many populations handle 32–45°F (0–7°C); light frosts down to about 25°F (-4°C) are usually survived if the crown is not exposed and the soil stays damp.
• Avoid prolonged extremes above 95°F (35°C) or below 20°F (-7°C); in strong heat, increase water depth and provide light shade, and in severe cold, mulch or move containers to a sheltered, frost-protected spot.

This species prefers consistently moist air to maintain active dew production on its leaves.

• Target 50–70% humidity; it tolerates brief drops but prolonged air below 40% reduces mucilage and trapping efficiency.
• Low humidity stress shows as dry, matte leaf surfaces and reduced insect capture even when soil is wet.
• Increase humidity with nearby water trays or grouped plants rather than enclosing spoonleaf sundew in stagnant, unventilated covers.

This wetland carnivore needs a nutrient-poor, acidic, airy medium that stays constantly moist yet not waterlogged.

• Use a mix of 1:1 sphagnum peat moss and silica sand or perlite to create a loose, low-nutrient substrate.
• Aim for acidic conditions around pH 4.0–5.5, avoiding any lime, compost, or standard potting soil that adds minerals or fertilizer.
• Ensure the mix drains freely but remains evenly damp by using coarse sand or perlite to improve aeration around the roots.
• Flush the pot occasionally with low-mineral water to prevent mineral buildup, which Drosera intermedia is highly sensitive to.

This species is very suitable for container cultivation, especially in trays or bog-style pots.

• Choose a pot at least 8–10 cm deep so roots can access a stable, cool, moist zone below the surface.
• Select plastic or glazed ceramic containers, which slow evaporation and help maintain the constant moisture this plant requires.
• Set the pot in a shallow tray of low-mineral water to provide steady moisture without submerging the crown of the plant.

Drosera intermedia gains most nutrients from captured insects and should receive only very weak, occasional feeding in cultivation.

• Use a very dilute orchid or carnivorous plant fertilizer at 1/8–1/4 strength, never standard houseplant food.
• Apply to the tray water, not directly on leaves, at most every 4–6 weeks during active growth.
• Give no fertilizer during winter dormancy; maintain only clean, low-mineral water.
• Rely mainly on small insects for nutrition when caring for spoonleaf sundew.

Drosera intermedia needs only light, corrective pruning to maintain vigor and hygiene.

• In late winter or early spring, remove dead or blackened leaves at the base to reduce mold risk.
• Trim spent flower stalks once seeds have shed if unwanted, directing energy back to foliage.
• Use small, sharp scissors or fine snips, disinfected with alcohol before and after use.
• Avoid cutting healthy, dewy leaves, as this reduces the plant’s feeding surface and vigor.

Repotting or transplanting this carnivorous species is infrequent but useful to refresh the acidic, low-nutrient substrate.

• Plan to repot Drosera intermedia every 1–2 years or when growth slows and peat looks compacted.
• Carry out repotting in early spring just before strong new growth begins.
• Use a gentle mix of 1:1 sphagnum peat and perlite or sand, thoroughly rinsed and free of added fertilizer.
• Handle the root ball carefully, keeping it mildly moist, and minimize disturbance to avoid transplant shock.

This species is commonly propagated by seed and leaf cuttings under consistently moist, bright conditions.

• Collect ripe seed and sow on the surface of damp peat-sand mix; do not cover, as seeds need light for germination.
• Provide 60–75°F, bright indirect light, and constant moisture; germination usually occurs within several weeks.
• Take healthy leaf cuttings in late spring or summer and lay them flat on wet long-fiber sphagnum.
• Maintain high humidity with a clear cover and ventilate slightly to limit fungal growth while plantlets form.

This temperate sundew needs a cool dormancy and tolerates moderate frost when roots stay consistently damp.

• In the ground, a light mulch of pine needles or coarse peat helps insulate the crown in colder regions.
• Container plants in zones with prolonged freezes should be moved to a cold frame or unheated bright room.
• Keep the medium just moist, not waterlogged, during dormancy to prevent rot in cold conditions.