How to grow and care for Thread Agave (Agave filifera) Indoors

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Houseplant, Thread Agave, Agave filifera

Botanical name: Agave filifera
Synonyms: Agave filamentosa, Agave pseudofilifera, Bonapartea filamentosa
Family: Asparagaceae
Common names: Thread Agave, Thread-leaf Agave

Thread Agave Description

Thread Agave (Agave filifera) also called Thread-leaf Agave is an evergreen perennial plant and is one of the popular Agave plants for growing indoors on account of its compact size. It forms a stemless rosette of long, blade-like, dark-green to a bronzish-green colored leaves.

The leaves in Thread Agave bear fine thread-like filaments which gives the plant its common name, 'Thread Agave'.

Thread Agave grows slowly and may take a long time to out grow its pot and therefore it does not require frequent repotting. Avoid disturbing Thread Agave as much as possible as it does not like to be disturbed.

Thread Agave Size

Thread Agave grows to a height of upto 2 ft and up to 3 ft wide. The leaves are about 1 ft long.

Thread Agave Flower

The flower stalk in Thread Agave is about 11.5 feet tall and is densely loaded with yellowish-green to dark purple flowers which are about 2 in. long.

Thread Agave Origin

Thread Agave (Agave filifera) is native to Central Mexico from Queretaro to Mexico State.

Buy beautiful and healthy Thread Agave Plants (Agave filifera) from Etsy.

Houseplant, Thread Agave, Agave filifera

Photo Credit: Garden Plants Online

Thread Agave (Agave filifera) Care Indoors

Thread Agave Plant Light Requirements

Thread Agave (Agave filifera) grows best in bright light with direct sunshine. A bright sunny window with as much sun as possible is ideal.

Avoid exposing Thread Agave Plant to direct sunlight before acclimatizing it as it can get sunscorched. Check out this guide on understanding light for houseplants.

How to water Thread Agave Plant

Water Thread Agave (Agave filifera) thoroughly during the growing season, when the soil begins to dry out. Water very infrequently in the cold months as growth is minimal at this time.

Avoiding wetting the center of the rosette as it can lead to rotting of your Thread Agave Plant. Water from the bottom instead.

Use water that is at room temperature to avoid plant shock. Read more on how to water houseplants.

Ensure the soil for your Thread Agave is free-draining and the pot has a drainage hole to avoid getting soggy soil as it can lead to root-rot.


Temperature for Thread Agave Plant

Warm temperatures between 21-320C are ideal for your Thread Agave. However, it can tolerate lower temperatures of up to 100C.

The sudden change in temperature between day and night is excellent for this succulent.

Humidity for Thread Agave Plant

Average room humidity is adequate for your Thread Agave (Agave filifera). The plant does not require high humidity.

Thread Agave does not mind dry air as it is well adapted to it from its natural habitant.

Thread Agave Fertilizer (Feeding)

Feed Thread Agave (Agave filifera) monthly during the growing period with a water-soluble fertilizer, only in the first 2 years of growth.

Established plants do not require regular feeding as too much feeding may encourage blooming leading to premature death.

Agaves are monocarpic plants which means they die once they bloom leaving pups for propagation.

How to repot Thread Agave Plant

Repot Thread Agave (Agave filifera) only when necessary and that is when the plant becomes pot-bound.

Use a shallow rather than a deep pot as they have shallow roots. The pot should be only 1 size larger as it prefers to be root-bound.

Ensure the pot for your Thread Agave has a drainage hole to prevent the soil from becoming soggy as it can lead to root-rot.

To protect yourself from the sharp spines of your Thread Agave, always wear gloves when handling this plant.

Soil for Thread Agave

The best soil for Thread Agave should be rich in organic matter, loose and free-draining to avoid getting soggy soil. The soil should be loose enough to allow water to drain out fast enough.

Cactus and Succulents soil is ideal for Thread Agave. Buy quality Cactus and Succulents Soil for your Thread Agave from Etsy.

How to prune Thread Agave Plant

Prune Thread Agave (Agave filifera) by cutting dead or diseased leaves with sharp strong shears, a long sharp knife or a curved pruning saw to minimize tearing and injury to yourself as the leaves have spines and are quite tough to cut.

Thread Agave (Agave filifera) Propagation

Thread Agave (Agave filifera) propagtaion can be done from seeds but they take long to develop. Propagation from offsets that form at the base of the plant is easier and much faster.

How to propagate Thread Agave from offsets

Seperate the offset from the mother and remove any damaged roots. Select an offset which has several leaves.

Allow the offsets to dry (callous) for 1-3 days before potting to prevent rotting.

Plant the Thread Agave offset in a moist free-draining soil. Water sparingly, water only when the soil is dry.

Ensure that the pot has a drainage hole to prevent the soil from getting soggy as it can lead to rotting.

Houseplant, Thread Agave, Agave filifera

Photo Credit: Planting Man

Thread Agave (Agave filifera) Problems Indoors

Thread Agave wilted and discolored leaves

Overwatering during the cold season is the cause of wilted and discolored leaves in your Thread Agave (Agave filifera).

Reduce watering during the cold season to maintain the soil slightly moist.

Thread Agave brown dry spots

Brown dry spots in your Thread Agave (Agave filifera) are due to underwatering during the growing season.

Water your Thread Agave thoroughly during the growing season when the soil begins to dry out.

Thread Agave brown soft spots

Brown soft spots in your Thread Agave (Agave filifera) are caused by Leaf Spot Disease which is enhanced by poor air circulation.

Ensure there is free air circulation for your Thread Agave at all times. Read more on Leaf Spot Disease.

Thread Agave rotting at base, followed by yellowing and shriveled leaves

Rotting plant base followed by yellowing and shrivelled leaves in your Thread Agave Plant is an indication of basal stem-rot disease which is brought about by overwet conditions.

Avoid overwatering. Ensure the pot has a drainage hole and the soil is free-draining to prevent the soil from getting soggy.

Thread Agave (Agave filifera) Pests

The common pests in Thread Agave (Agave filifera) are Mealy Bugs and Scale Insects.

Isolate the affected Thread Agave to reduce spread to other houseplants and treat it appropriately for the pests.

Is Thread Agave (Agave filifera) toxic?

Thread Agave Plant (Agave filifera) produces a sap that can cause skin dermatitis in sensitive people.

The leaves of Thread Agave bear sharp spines which may cause injury if handled with bare hands. Always wear gloves when handling the plant.

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