Asparagus Sprengeri

SOIL: The key to success of an Asparagus fern is a fast draining soil. There are a couple ways to do this:

Mix 1 part potting soil with one part perlite. While potting soil generally has perlite in it, we want to add more to increase aeration and improve drainage.

Asparagus ferns also like a loamy soil. You can make this by mixing 20% clay, 40% sand and 40% silt.

LIGHT: Asparagus ferns like bright indirect light. Too much hot sun and you can scorch their leaves, too little and it will yellow and drop needles. You can take 2 approaches when placing your asparagus ferns:

Place directly in an east facing window. It will love that soft morning sun. A north window MAY be enough light but just keep an eye on it and if it’s looking sad, move it too a brighter locale.

Place it to the side of or a few feet back from a south or west facing window. This is where indirect becomes important. These windows will get afternoon and evening sun which is very hot, especially in summer, and it can burn your plant.

HUMIDITY: Keep the humidity high! I have mine placed in my bathroom to make sure this need is met. If you cannot do that then buy a humidifier (this is mine), mist it daily, place it near other plants as that increases general humidity, or place the plant on a tray of pebbles and water.

WATER: Asparagus ferns like a very deep watering followed by letting them dry out. Check the top 2” of soil by sticking your finger in. If it is dry, water deeply so that water flows out the bottom into its saucer. Dump the water and place the saucer back under the plant.