How to Grow Huauzontles UK

On this page
  1. Huauzontle (Chenopodium berlandieri subsp. nuttalliae)
  2. When to Plant Huauzontles in the UK
  3. Quick Facts
  4. At a Glance
  5. Soil & Growing Conditions
  6. Growth Stages
  7. Harvest & Storage
  8. Diseases
  9. Pests
  10. Huauzontle, Aztec Broccoli
  11. Plan your Huauzontles planting
  12. Growing Huauzontle in another region
  13. References
  14. Frequently Asked Questions

In the UK, huauzontle goes in the ground early April to early June.

Timing is the decision that matters most in the UK: sowing early April, and that same window applies across all 4 regions covered here.

The short answer

Plant
Early April to early June
Biggest risk
Quinoa downy mildew

Core growing advice on this page is checked against named horticultural sources — see References.

Huauzontle (Chenopodium berlandieri subsp. nuttalliae)

A whole huauzontle plant with flowering seed heads — “Hojashuau” by Pabs004 is licensed under CC BY-SA 3.0.

2 sources cited · Verified

When to Plant Huauzontles in the UK

When to plant huauzontles in the UK: in Southern England, sow early April to early June. Find your area in the table below.

Huauzontle seeds in a labeled packet — “Chenopodium berlandieri seeds” by Nwbeeson is licensed under CC0.
“Chenopodium berlandieri seeds” by Nwbeeson is licensed under CC0.
Region Sow
Southern England early April to early June
Midlands early April to early June
Northern England early April to early June
Scotland early April to early June
Southern England - detail & sources

Pumpkin Beth: sow after the last frost in temperate zones, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.

Midlands - detail & sources

Pumpkin Beth: sow after the last frost in temperate zones, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.

Northern England - detail & sources

Pumpkin Beth: sow after the last frost in temperate zones, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.

Scotland - detail & sources

Pumpkin Beth: sow after the last frost in temperate zones, with no UK-region-specific dates given; this window is applied across all four sub-regions rather than inventing a north/south gradient the sources do not support.

A page from the UK Vegetable Garden Planner PDF: the crop rotation planner, with a planning grid and four-bed rotation tips

Plan your huauzontle — and the rest of the plot

This page covers huauzontle. For every crop's sowing months on one chart, use the free UK vegetable planting calendar, and browse the UK vegetable growing guides for what else to grow alongside it. When you want the whole season on paper, the UK Vegetable Garden Planner is a printable PDF:

  • Twelve month-by-month sowing and harvest spreads
  • Raised bed, allotment and container layout pages for your own plot
  • A four-year crop rotation planner
  • Seed inventory, sowing log and harvest tracker
See inside the UK Vegetable Garden Planner →

Instant PDF download · reprint every season

Quick Facts

A whole huauzontle plant with flowering seed heads — “Hojashuau” by Pabs004 is licensed under CC BY-SA 3.0.
“Hojashuau” by Pabs004 is licensed under CC BY-SA 3.0.
Factor Value
Soil texture light, medium or heavy soil, moderately fertile (PFAF, Pumpkin Beth)
Drainage well-drained
Lifecycle annual
Edible parts leaves, flower clusters, seeds

At a Glance

Harvested huauzontle stems with flower clusters — “Tallohua” by Pabs004 is licensed under CC BY-SA 3.0.
“Tallohua” by Pabs004 is licensed under CC BY-SA 3.0.
Chenopodium berlandieri… Huauzontle Quinoa downy mildew Aphids Lygus bug DISEASES PESTS

Soil & Growing Conditions

Harvested huauzontle stems with flower clusters — “Tallohua” by Pabs004 is licensed under CC BY-SA 3.0.
“Tallohua” by Pabs004 is licensed under CC BY-SA 3.0.

Water: prefers moist soil (PFAF)

Growth Stages

Close-up of huauzontle's broccoli-like immature flower heads — “Semillas” by HuriAguilar is licensed under CC BY-SA 3.0.
“Semillas” by HuriAguilar is licensed under CC BY-SA 3.0.
Stage BBCH Notes
Sowing 0 Sow seed spring in situ after the last frost; germination is normally very rapid, though seedlings resemble fat hen weed (PFAF, Pumpkin Beth).
Spacing/thinning 1 Space plants 15-20cm (6-8in) apart (Pumpkin Beth).
Leaf growth 3 Grows upright and bushy to 3-5ft tall; leaves harvestable as a vegetable after 7-10 weeks, with excellent heat tolerance (Pumpkin Beth).
Flowering and seed harvest 8 Flowers July to October, seeds ripening August to October; immature flower buds are the prized harvest, resembling small broccoli florets (PFAF, Pumpkin Beth).

Harvest & Storage

A bundle of harvested huauzontle flower clusters — “Huauzontle2” by Pabs004 is licensed under CC BY-SA 3.0.
“Huauzontle2” by Pabs004 is licensed under CC BY-SA 3.0.

When to pick: Leaves can be harvested as a vegetable after 7-10 weeks; the prized immature flower buds, resembling small broccoli florets, are harvested for traditional Mexican dishes. Raw leaves should be eaten only in small quantities due to saponin and oxalic acid content (Pumpkin Beth, PFAF).

Diseases

A whole huauzontle plant with flowering seed heads — “Hojashuau” by Pabs004 is licensed under CC BY-SA 3.0.
“Hojashuau” by Pabs004 is licensed under CC BY-SA 3.0.
Quinoa downy mildew
moderate

Peronospora variabilis

Likely rather than confirmed: no source names this crop directly, but it shares a genus (Chenopodium) with Quinoa, which lists this disease.

Pests

Close-up of huauzontle's broccoli-like immature flower heads — “Semillas” by HuriAguilar is licensed under CC BY-SA 3.0.
“Semillas” by HuriAguilar is licensed under CC BY-SA 3.0.
low

Aphididae (various spp.)

Likely rather than confirmed: no source names this crop directly, but it shares a genus (Chenopodium) with Quinoa, which lists this pest.

Lygus bug
moderate

Lygus spp.

Likely rather than confirmed: no source names this crop directly, but it shares a genus (Chenopodium) with Quinoa, which lists this pest.

Plan your Huauzontles planting

When to sow and plant Huauzontles depends on your own frost dates. Check the UK vegetable planting calendar. To work out where it fits in your beds, sketch your plot in the free Garden Layout Planner.

Growing Huauzontle in another region

Sowing dates, frost timing and local advice differ by country. Use the guide for where you garden.

References

  1. A secondary gardening reference rather than a university or horticultural authority, used as the primary source as no RHS or equivalent authority growing profile exists for this species, explicitly disclosed. An annual reaching 0.6m (2ft) tall, flowering July-October, seeds ripening August-October, hermaphrodite and wind-pollinated. Native to southern North America, Mexico. Cannot grow in shade, requires full sun. Soil: light, medium or heavy, mildly acidic to mildly alkaline pH, prefers moist soil. Sow seed spring in situ; germination is normally very rapid, but seedlings resemble fat hen weed, requiring careful identification while weeding. Easily grown in most soils, preferring moderately fertile conditions; historically cultivated in Mexico for edible seeds and flowering shoots; potentially a very productive crop. Edible leaves (cooked), flower clusters (cooked, resembling small broccoli florets), and seeds (cooked). HAZARD: contains saponins and oxalic acid -- those with rheumatism, arthritis, gout, kidney stones, or hyperacidity should use caution; raw leaves should only be eaten in small quantities. No pests or diseases documented in this source.

  2. A secondary gardening reference rather than a university or horticultural authority, used only for heat-tolerance/spacing/harvest-timing detail PFAF does not cover, not contradicted by it. Grows as an upright, bushy annual, reaching 3-5ft tall, kept shorter with regular harvesting. USDA zones 2a-12 as a warm-season annual. Sow after last frost when soil is warmer (temperate zones), or year-round in sub-tropical/mild-winter areas; space plants 15-20cm (6-8in) apart. Noted for excellent heat tolerance, a good spinach substitute when true spinach bolts. After 7-10 weeks, leaves can be harvested as a vegetable; the flower buds -- immature seed heads, often likened to small broccoli florets -- are a prized culinary component central to many traditional Mexican dishes.

2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.

Frequently Asked Questions

When should I sow huauzontle in the UK?

In Southern England, from early April. In Scotland, wait until early April. Treat these as a guide rather than a fixed date — the governing rule is to sow only once frost risk has passed and temperatures are reliably warm enough.

When do I sow huauzontle?

Sow early April to early June.

What problems affect huauzontle?

Our data links 1 disease and 2 pests to this crop. See the sections above for each one and how to manage it.

Plan next season before the problems start

Most of the advice on this page comes down to timing and spacing — sowing at the right moment, rotating beds, and giving plants enough airflow. The UK Garden Planner lays your plot out month by month so those decisions are already made before the season starts.

Get the UK Garden Planner →

Instant PDF download · Written for UK growing conditions

SoilCommander Editorial Team — under the guidance of Nitin Sharma, Co-Founder

Every growing guide is checked against RHS, USDA Cooperative Extension, and other named horticultural authorities before publishing. How we check our facts.

How this guide is put together

The growing data on this page — sowing windows, pests, diseases, soil and site requirements — comes from named horticultural sources, listed in References below, checked against RHS and Met Office guidance. An automated pipeline assembles that verified data into the page you're reading: it selects which facts to lead with and builds the surrounding prose and layout. It does not invent a date, a source or a number — where a verified value for a field isn't available, the page leaves it out rather than guessing. A person reviews and publishes each page; nothing goes live unverified.

Vegetable Growing Guides UK

Last verified 2026-09-02

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