Mediopicta Alba (Agave americana ‘Mediopicta Alba’)

Grow Agave americana 'Mediopicta Alba' in full sun, sharply drained soil, and with infrequent deep watering. Protect it from hard frost and prolonged winter wet.

It is primarily an outdoor landscape or patio plant in the United States. In colder regions, grow it in a container and move it under shelter before hard freezes.

A mature rosette commonly reaches about 3 to 4 feet tall and 3 to 6 feet wide. Size varies with climate, soil, container restriction, and growing conditions.

Agave americana 'Mediopicta Alba' is generally slow to moderate-growing. It establishes faster in warm, bright conditions than in cool or shaded locations.

Give it full sun, preferably at least 6 hours of direct light daily. Very light afternoon shade can be acceptable in extremely hot climates, but insufficient light may weaken its form.

It is best suited to warm USDA zones, commonly around Zone 8b and warmer, but exact cold tolerance can vary by plant and site. Protect it whenever temperatures may fall near or below the upper teens to low 20s °F.

It can survive winter outdoors in mild, dry climates when planted in very well-drained soil. In colder or wet regions, keep it sheltered from hard freezes and winter rainfall.

Yes, it can grow well in intense Southwest sun if drainage is excellent and watering is adjusted during extreme heat. Temporary leaf yellowing or stress can occur during severe summer conditions.

Yes, coastal California is generally favorable when the plant receives strong sun and is not kept in constantly wet soil. Protect it from foot traffic because the leaf teeth and terminal spine are hazardous.

Yes, it grows well in a heavy container with drainage holes and a gritty, fast-draining succulent mix. Use a stable pot because the broad rosette can become top-heavy.

Water thoroughly only after the soil has dried completely or nearly completely. Established outdoor plants may need supplemental water during prolonged summer drought but usually need little or none during cool, wet weather.

Use sandy, loamy, rocky, or mineral-heavy soil that drains rapidly. Avoid heavy clay, water-retentive mixes, and planting locations where rain or irrigation collects.

Yellowing commonly indicates excess moisture, poor drainage, root stress, or intense heat stress. Let the soil dry, check the roots and crown for rot, and provide better drainage before watering again.

Brown spots can result from sun stress, freeze injury, physical damage, fungal problems, or prolonged moisture on the leaves. Remove badly damaged tissue only if necessary and correct the underlying moisture or exposure problem.

Older lower leaves naturally dry and decline as the rosette grows. Remove them only when fully dead; widespread soft, dark, or rapidly collapsing leaves suggest overwatering, rot, or freeze damage.

It usually does not need regular fertilizer when grown in reasonably fertile, well-drained soil. Excess fertilizer can encourage softer growth and is unnecessary for a healthy established plant.

Agave weevils, scale insects, and occasionally other sap-feeding pests can affect it. Watch for wilting, unexplained collapse, holes, or distorted growth, especially during warm weather.

Prevent root rot by using sharply drained soil, a container with open drainage, and a dry period between thorough waterings. Keep the crown above surrounding soil and avoid frequent irrigation during cool or rainy weather.

Plant it in spring or early summer after the risk of hard frost has passed. This gives the roots time to establish before winter and reduces cold damage to a recently transplanted plant.

Set it at the same depth it was growing in its container, with the crown and leaf bases kept above the soil line. Backfill with fast-draining soil and wait several days before the first thorough watering.

Repot it into a slightly larger, heavy container using a gritty, fast-draining mix. Handle the root ball and leaves carefully, then allow damaged roots or cuts to dry before resuming normal watering.

A heavy clay, ceramic, or thick-walled container with a drainage hole is best for stability. Choose a pot only modestly wider than the root ball to limit excess wet soil.

Propagate it from offsets, also called pups, or from seed. Offsets are the most practical method because seed-grown plants may vary and take longer to reach a useful size.

It may produce offsets at the base, although this cultivar can be solitary or only slowly clumping. Remove a well-developed offset with some roots during active growth and let any cut surface dry before planting.

No, leaf cuttings are not a reliable propagation method for this agave. Use offsets or properly handled seed instead.

Agave americana 'Mediopicta Alba' needs little pruning beyond removing completely dead leaves or damaged offsets. Wear thick gloves and eye protection, and never cut healthy leaves unnecessarily.

It is moderately harmful if eaten, and its sap can irritate skin and eyes. The stiff leaf teeth and terminal spine can also cause serious puncture injuries, so keep it away from children, pets, and walkways.

No, it is not considered pet-safe because ingestion can be harmful and the foliage can cause physical injury. Place it where pets cannot chew or brush against the spiny leaves.

Wear heavy gloves, long sleeves, eye protection, and sturdy clothing when handling or removing it. Use appropriate tools to avoid contact with the sap, leaf teeth, and sharp terminal spine, and keep children and pets away from the work area.

Yes, it eventually produces a very tall branching flower stalk with yellow flowers. Flowering may take many years, and the main rosette normally dies after blooming.

It commonly flowers after roughly 10 or more years, but timing is highly variable. Climate, plant size, genetics, and growing conditions all affect when flowering begins.

The flowering rosette is monocarpic and normally dies after producing flowers and seed. Offsets, if present, can continue growing and replace the original plant over time.