Repotting guide

When & how to repot Lamb Hass Avocado (Persea americana 'Lamb Hass')

Also called Lamb Hass avocado.

More about lamb hass avocado

About Lamb Hass Avocado

Persea americana 'Lamb Hass' · also called Lamb Hass avocado · tropical

'Lamb Hass' is a Hass-type avocado with larger fruit, an upright compact habit and good heat tolerance. A type-A flowering cultivar, it crops later than 'Hass' and pairs well with a type-B pollinator. It needs full sun, very sharp drainage and frost protection to perform well.

Mature size: 4-7 m in open ground (more compact than Hass); kept to 2-3 m in a large container.

Watch for — Phytophthora root rot: The main avocado killer, driven by poor drainage and overwatering. Prevent with very free-draining soil, controlled watering and resistant rootstock.

How to tell lamb hass avocado needs repotting

Repotting on a calendar is less reliable than reading the plant. For lamb hass avocado, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot lamb hass avocado

Every 2–3 years, into bone-dry mix. Lamb Hass Avocado's growth habit — evergreen tree with an upright, compact, fairly narrow canopy that allows closer planting; type-a flowering habit, cropping later in the season than 'hass'. — sets the pace. 'Lamb Hass' is a Hass-type avocado with larger fruit, an upright compact habit and good heat tolerance. A type-A flowering cultivar, it crops later than 'Hass' and pairs well with a type-B pollinator. It needs full sun, very sharp drainage and frost protection to perform well.

What size pot to step lamb hass avocado up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Lamb Hass Avocado stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot lamb hass avocado

Spring or summer, while lamb hass avocado is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting lamb hass avocado

Repot dry. Do not water lamb hass avocado for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty very free-draining, slightly acidic loam (ph 6.0-6.5) ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set lamb hass avocado at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep lamb hass avocado completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for lamb hass avocado

Lamb Hass Avocado wants very free-draining, slightly acidic loam (ph 6.0-6.5). Drainage is critical — use a coarse, aerated, gritty mix or raised beds and avoid heavy, wet soils. A slightly acidic pH supports healthy green foliage and limits chlorosis. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting lamb hass avocado — frequently asked questions

How often should you repot lamb hass avocado?

Every 2–3 years, into bone-dry mix for lamb hass avocado. Repot lamb hass avocado every 2–3 years into a snug pot of very free-draining, slightly acidic loam (ph 6.0-6.5), ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does lamb hass avocado need?

When is the best time of year to repot lamb hass avocado?

Should you water lamb hass avocado after repotting?

No — not straight away. Repot lamb hass avocado into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise lamb hass avocado after repotting?

Not immediately. Wait about 3 weeks after repotting lamb hass avocado. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.