The Pink Plant Lady
Asparagus Fern
Asparagus Fern
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3.5”
Several species of the Asparagus genus are commonly known as asparagus fern—especially A. densiflorus, which is typically grown outside, and A. aethiopicus, which is typically grown as a houseplant. While different species, both are very similar plants with bright green feathery like foliage.
Neither plant is a fern, they are warm-weather perennials closely related to the common edible garden asparagus. In zones 9 to 11, these plants are hardy outdoors, where they grow as creeping spreading plants, but it is also common for them to be grown as indoor houseplants, where they make good specimens in mixed containers or hanging baskets.
Normally planted in the spring, the fast-growing asparagus fern has a lot of good qualities, but it comes with some important cautions. In warm, humid climates, asparagus ferns can spread rapidly when planted outdoors—to the point of serious invasiveness. Indoors, the key to a robust asparagus fern is to keep the plant properly watered, bushy, and dense, so its lace-like foliage forms an attractive mound.
Light
The asparagus fern thrives in dappled shade, although it can be acclimated to more light. Keep it out of direct, bright sunlight, which can scorch the foliage.
Soil
Plant asparagus ferns in pots or containers in moist, loose, well drained potting soil. Outdoors, plant it in rich, well-drained soil that is slightly acidic. It prefers rich soil to thrive. Make sure containers have drainage holes.
Water
Keeping an asparagus fern hydrated takes a little effort, as this plant thrives on humidity. Indoor growing conditions can often be too dry, especially during the winter heating season. Mist the plant daily, focusing on the arching stems. If the plant appears to be turning brown and droopy, it likely needs more water.
Keep soil moist, and water when the top inch of soil feels dry to the touch. Warmer, humid air, & daily misting will help it thrive. Outdoors, keep asparagus fern well-watered to prevent the soil from completely drying out.
Temperature & Humidity
Try to maintain a warm temperature around 21°C and not dip below 12°C for too long. If you have a shady porch or a greenhouse, the indoor plants will likely respond with abundant growth over the summer. Avoid sudden changes in temperatures, which can cause the cladodes to drop.
Fertilizer
Feed asparagus fern with liquid or water-soluble all-purpose plant food diluted to half strength. During summer, container plants may need weekly feedings; otherwise, feed monthly.
Potting & Repotting
Plant asparagus ferns in pots or containers in loose, well-drained potting soil. Asparagus ferns grow quickly, and the tuberous roots can easily break a pot. Plan on repotting often. For the most successful repotting, divide the plant into big clumps, and be sure to take multiple underground roots when dividing. Place the divided plants into new pots filled with fresh potting soil. Water well.
USDA HARDINESS ZONE: 9-11.
IMPORTANT: TOXIC.
*Please note the plant you receive may not be exactly as pictured*
| Botanical Name | Asparagus aethiopicus, A. densiflorus |
|---|---|
| Sun Exposure | Bright, indirect light |
| Watering | Moist, water when top inch feels dry |
| Soil Type | Well-drained rich potting mix |
| Temperature | 13°- 21°C |
| Fertilizer | summer, plants may need weekly feedings; otherwise, feed monthly. |
| Humidity | 40-60% |
| Plant Type | Herbaceous perennial |
| Mature Size | Up to 3 ft. tall, 4 ft. wide |
| Flower Color | White; insignificant flowers |
| Hardiness Zone | 9-11 (USDA) |
| Toxicity | Mildly toxic to humans; moderately toxic to dogs and cats |
