Shrimp Plant / Mexican Shrimp Plant

Justicia brandegeeana

description

Shrimp Plant is a warm-climate shrub with arching shrimp-like flower bracts.

benefits

Flowering
Suitable for containers

How to care for Shrimp Plant

sunlight

In its warm Mexican habitat, shrimp plant grows with bright light and some shelter from harsh sun. Indoors, give it a bright window to support fuller growth and more colorful bracts.

Bright indirect light

Place near an east, west, or bright south-facing window with a sheer curtain. It will grow in medium light, but may become lanky and flower less.

Bright light with gentle morning sun

A few hours of direct morning sun can encourage blooming. Shield it from intense afternoon sun, especially through glass or in hot climates, to prevent scorched leaves.

If stems stretch and the bracts are sparse, move the pot closer to the window or add a grow light.

watering

Keep the soil lightly and evenly moist during active growth, but never leave the roots sitting in water. Let the top 1 inch of soil dry before watering thoroughly.

Spring - summer

Check about every 4-7 days in bright light and warm conditions. Water until excess drains out, then empty the saucer. A small pot, porous mix, heat, and flowering growth can make it dry faster.

Fall - winter

Expect to water roughly every 7-14 days as growth slows. Check the top 1-2 inches first, especially in lower light or a cool room. Do not let the whole root ball stay dry for long, as leaves may droop or shed.

Lift the pot after watering and again when it is ready for water - the lighter weight is a reliable check beyond the surface soil.

Constantly wet soil can cause root rot, especially in a dense mix or a pot without drainage.

humidity

Humidity

50-70%

Native to warm, humid parts of Mexico and Guatemala, shrimp plant looks best with moderate humidity. Average household air around 40-60% is usually fine, but keep it nearer 50% or higher if leaf edges crisp or flower bracts dry out early.

Group it with other plants or use a small humidifier nearby if indoor air stays below 40%.

Keep it away from heating vents, air conditioners, and cold drafts.
Dry air can cause brown leaf tips, curling leaves, and faster fading or dropping of bracts.

temperature

Preferred range

18-27°C (65-80°F)

Winter minimum

15°C (59°F)

Native to warm Mexican woodland edges, Shrimp Plant stays happiest in consistently mild indoor warmth. Keep it away from chilly windows in winter and avoid prolonged heat near radiators, which can dry the leaves and shorten the bract display.

Place it where daytime and nighttime temperatures stay steady, rather than beside a door, heater, or air-conditioning vent.

Cold drafts and temperatures below 15°C (59°F) can cause leaf drop and slow growth.

nutrition

March - September

Feed every 2-4 weeks while the plant is making new growth or bracts, using a balanced liquid houseplant fertilizer at about half strength. Stop feeding in winter unless it is still actively growing in warm, bright conditions.

Nitrogen

Nitrogen supports the leafy growth that carries the arching flower stems. A balanced fertilizer provides enough without pushing soft, overly green growth.

Potassium

Potassium supports flowering and colorful bracts, so a balanced fertilizer is a better choice than one made mainly for foliage.

Apply fertilizer to already moist soil, then flush the pot with plain water occasionally to prevent fertilizer salts from building up.

soil

Rich, airy, moisture-holding soil

Shrimp Plant grows best in a loose, fertile mix that holds some moisture but drains freely, so its roots do not stay soggy. Combine regular potting mix with compost or coco coir and a handful of perlite or fine bark for air around the roots.

pH 6,0 - 7,0

This is slightly acidic to neutral, which suits most quality houseplant mixes. Use a fresh peat- or coco-based potting mix rather than strongly acidic soil or garden soil.

Use a pot with drainage holes and empty the saucer after watering, especially in cool or low-light conditions.