Good King Henry
A perennial spinach substitute cultivated in European gardens since medieval times, producing arrow-shaped leaves and asparagus-like shoots.
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Meet Good King Henry
A perennial spinach substitute cultivated in European gardens since medieval times, producing arrow-shaped leaves and asparagus-like shoots. Once established, plants return year after year and tolerate poor soil and partial shade. Young spring shoots can be harvested like asparagus, while leaves are cooked like spinach throughout the growing season. An excellent low-maintenance crop for permaculture and perennial vegetable gardens.
When to plant Good King Henry
Sow seeds one-quarter inch deep in spring or fall. Stratify seeds in the refrigerator for 2 to 4 weeks before sowing to improve erratic germination. Germination takes 2 to 6 weeks at 50 to 65 degrees Fahrenheit and can be patchy. Starting seeds in pots allows better monitoring. Transplant to final positions when seedlings have 4 true leaves. Plants establish slowly in the first year but become vigorous perennials.
Your Good King Henry Year
Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1
Sow Good King Henry Mar – May, pick Apr – Jul. Set your climate below and every date on this plate re-times itself.
How to grow Good King Henry
Good King Henry is an ancient European perennial vegetable once commonly grown in cottage gardens for its edible leaves, shoots, and flower spikes. Sow seeds one-quarter inch deep in spring or fall, spacing 12 to 18 inches apart. Seeds can be slow and erratic to germinate, taking 2 to 6 weeks at 50 to 65 degrees Fahrenheit.
Plants prefer rich, moist soil in full sun to partial shade. Good King Henry is slow to establish in its first year but becomes increasingly productive in subsequent years. The triangular, arrow-shaped leaves emerge in early spring and can be harvested like spinach.
In spring, the young asparagus-like shoots can be blanched and harvested before leaves unfurl. Cut flower spikes while still in bud for a broccoli-like vegetable. Once established, plants are long-lived perennials that require minimal care. Top-dress with compost annually in late winter and divide clumps every 4 to 5 years to maintain vigor.
32 plants fit a 4 × 8 ft bed
Each Good King Henry wants 30 cm of elbow room. The planner keeps that spacing for you — every plant, every bed.
Good King Henry's best neighbours
As a perennial, Good King Henry works best in a dedicated perennial vegetable bed alongside other permanent crops like rhubarb, asparagus, and sorrel. Its deep roots help improve soil structure for neighboring plants. Plant in a location where it can remain undisturbed for many years. Avoid annual vegetable beds where it would interfere with tilling.
Lettuce belongs beside it.
Old growers' knowledge, checked against Good King Henry's real companion table below — test any plant you're growing.
Related growing guides
Feed it well
Good King Henry thrives in rich, moist, well-drained soil with a pH between 6.0 and 7.5. Amend planting area with generous compost and well-rotted manure. Top-dress annually with compost in late winter to maintain soil fertility. A spring application of balanced organic fertilizer encourages vigorous shoot and leaf production. The deep roots access nutrients beyond the reach of shallow-rooted crops.
Ideal Temperature
Hardiness Zone Compatibility
From seed to harvest, stage by stage
Seed Germination
Good King Henry seeds are notoriously slow and erratic to germinate, often taking 14-28 days even under ideal conditions. Seeds require a period of cold stratification (2-4 weeks at 1-5°C) to break dormancy. The tiny seedlings emerge with small, rounded cotyledons before developing their first true arrow-shaped leaves.
Seedling Establishment
Seedlings grow slowly during their first season, producing a rosette of small triangular leaves and developing the deep, fleshy rootstock that will sustain the plant for years. First-year plants rarely exceed 15-20 cm in height and should not be harvested.
Root Establishment
Through the first full growing season, the plant directs most energy into building its thick, fleshy perennial rootstock and deep root system. By autumn, the above-ground foliage dies back to ground level as the plant enters dormancy, storing energy in the roots for vigorous spring emergence.
Spring Shoot Production
From the second year onward, thick asparagus-like shoots emerge from the crown in early spring. These pale green to purple-tinged shoots are the most prized edible part of the plant. If left unharvested, they develop into the tall flowering stems topped with dense spikes of tiny greenish-yellow flowers.
Mature Leaf Production
After the shoot harvest period ends, the plant enters vigorous leafy growth. Large, dark green, triangular leaves with a mealy or waxy coating develop on branching stems that reach 60-80 cm tall. Leaves can be harvested regularly throughout summer like a perennial spinach crop.
Flowering and Seed Set
Dense flower spikes develop at the top of mature stems, bearing clusters of tiny greenish-yellow flowers that are wind-pollinated. Seeds mature by late summer into small, dark, rounded nutlets. The plant gradually dies back to the crown in autumn, entering winter dormancy before repeating the cycle for 10-20 years or more.
Cold-stratify seeds in damp sand in the refrigerator for 2-4 weeks before sowing. Sow shallowly at 1 cm depth in spring. Keep soil moist but not waterlogged. Be patient — patchy germination over several weeks is completely normal.
Caring for Good King Henry month by month
What to do each month for your Good King Henry
July
You are hereContinue leaf harvesting but allow the plant to retain enough foliage for photosynthesis. Flowers are setting seed — collect ripe seed heads if you want to expand your planting. Water consistently and side-dress with compost tea.
Know exactly what to do in your garden — every month
One email at the start of each month: what to sow, plant, and tackle right now — for your Good King Henry and everything growing around it. Plus a short starter course that helps you dodge the classic mistakes.
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Harvesting Good King Henry
Harvest young spring shoots when they are 4 to 6 inches tall, before leaves unfurl, for an asparagus-like vegetable. Cut flower spikes while still in tight bud for a broccoli-like vegetable. Harvest individual outer leaves throughout the growing season like spinach. Do not harvest heavily in the first year to allow plants to establish strong root systems. From the second year onward, plants are highly productive.
assuming you sow when the window opens — set your real date
Pick Good King Henry promptly and the plant keeps producing.
Storage & Preservation
Fresh leaves and shoots should be used within 2 to 3 days of harvest. Store in the refrigerator in a damp towel. For preservation, blanch leaves and shoots for 1 to 2 minutes, ice-bath, and freeze for up to 6 months. Good King Henry does not dry well. As a perennial plant, it provides fresh harvests directly from the garden from early spring through fall.
What goes wrong — and the fix
Slugs
PestHoles in young emerging leaves in spring, slimy trails around the plant crown.
Leaf Miners
PestWhite or tan winding tunnels within leaves where larvae feed between leaf surfaces.
Downy Mildew
DiseaseYellow patches on leaves with gray fuzzy growth underneath, most common in cool damp weather.
Troubleshooting Common Problems
Slow and erratic seed germination frustrates many first-time growers. Plants produce little harvestable material in the first year while establishing root systems. The leaves contain oxalic acid and should be eaten in moderation, especially by those prone to kidney stones. Plants can spread slowly by self-seeding and root expansion if not managed.
Growing Tips
- Cold-stratify seeds before sowing — this is the single most important step for success. Without 2-4 weeks of cold, moist treatment, germination rates can be as low as 10-20%. Alternatively, sow seeds outdoors in autumn and let winter provide natural stratification.
- Do not harvest anything in the first year. Good King Henry is a slow-establishing perennial and needs its entire first season to build the deep, fleshy rootstock that will sustain it for decades. Patience now means abundant harvests for 15-20 years.
- Earth up spring shoots for blanching by mounding 10-15 cm of soil, compost, or straw over emerging crowns in late winter. Blanched shoots are paler, sweeter, and more tender — this is the technique that earned the plant its 'poor man's asparagus' reputation.
- Always cook Good King Henry leaves before eating. Like spinach and many other Chenopodium relatives, the raw leaves contain oxalic acid that can irritate the mouth and reduce mineral absorption. Brief boiling, steaming, or sautéing neutralizes oxalates and improves flavor.
- Grow in rich, moisture-retentive soil with plenty of organic matter. Good King Henry is a heavy feeder that evolved in the nitrogen-rich soils near settlements and livestock areas. Annual top-dressing with well-rotted manure or compost is the single best thing you can do for productivity.
- Choose a position in partial shade to full sun. Unlike most vegetables, Good King Henry actually performs better with some afternoon shade in warmer climates, which prevents the leaf bitterness and premature bolting that occur in full sun during hot weather.
- Divide established clumps every 4-5 years in autumn or early spring to maintain vigor and expand your planting. Each division should include a portion of the fleshy rootstock with at least one growing bud. Replant immediately and water well.
- Pair with other perennial vegetables like perennial kale, sorrel, and rhubarb to create a low-maintenance food garden that produces year after year. Good King Henry's deep roots do not compete aggressively with neighbors and it makes an excellent companion in a forest garden understory.
Pick your Good King Henry
Good King Henry
The standard species with no named cultivars, producing triangular leaves and asparagus-like spring shoots.
Lincolnshire Spinach
A regional English selection reputed to have larger, more tender leaves than the standard species.
Mercury Plant
Another common name for the same species, sometimes sold under this name in herb catalogs.
Good King Henry is a plant-once, harvest-forever perennial vegetable — a single plant costing $3-6 produces food for 15-20 years with virtually no ongoing cost. The spring shoots provide a genuine asparagus substitute at a time when fresh asparagus sells for $5-10 per bunch, and the summer leaves replace spinach at $3-5 per bag. Over its lifetime, a single plant can easily provide $50-100 worth of produce with no replanting, minimal inputs, and almost zero maintenance.
Quick recipes
Buttered Good King Henry Shoots
10 minThe simplest and most traditional way to enjoy Good King Henry — young blanched shoots steamed and served with melted butter, just as English cottage gardeners have prepared them for centuries. The flavor is reminiscent of asparagus with a hint of spinach.
5 ingredientsGood King Henry and Ricotta Tart
45 minA savory tart featuring wilted Good King Henry leaves folded into a creamy ricotta and Parmesan filling — a beautiful way to use a large leaf harvest. The slightly mineral, earthy flavor of the leaves pairs perfectly with the rich cheese filling.
8 ingredientsGood King Henry Colcannon
30 minA twist on the classic Irish potato dish using Good King Henry leaves instead of cabbage or kale. The earthy, spinach-like greens melt into buttery mashed potatoes for the ultimate heritage comfort food.
6 ingredientsCulinary Uses
Young spring shoots are steamed or blanched like asparagus with melted butter. Leaves are cooked like spinach in soups, quiches, and gratins. Immature flower spikes are prepared like broccoli. The leaves have a mild, spinach-like flavor with slight minerality. Traditional cottage garden recipes pair it with eggs, cream, and nutmeg.
What's inside
Health Benefits
- Exceptionally high in vitamin A as beta-carotene (over 100% DV per 100g), essential for maintaining healthy vision, supporting immune cell production, and promoting skin and mucous membrane integrity.
- Good source of iron (2.4mg per 100g) which supports oxygen transport in the blood and helps prevent iron-deficiency anemia — particularly valuable as a plant-based iron source when paired with vitamin C-rich foods.
- Contains meaningful calcium (70mg per 100g) for bone and dental health — cooking the leaves breaks down oxalates that otherwise bind calcium, significantly improving mineral bioavailability.
- Rich in B-vitamins including folate, which is essential for DNA synthesis, cell division, and is critically important during pregnancy for preventing neural tube defects.
- The high fiber content supports digestive health, promotes regular bowel movements, and feeds beneficial gut bacteria that produce short-chain fatty acids important for colon health.
- Traditionally used in European folk medicine as a gentle laxative, a wound poultice (the leaves were applied to minor burns and skin irritations), and a spring tonic to restore vitality after winter — reflecting centuries of observed health benefits.
Where Good King Henry comes from
Good King Henry (Chenopodium bonus-henricus) is native to the mountainous regions of central and southern Europe, where it grows wild in nutrient-rich soils near settlements, pastures, and mountain meadows from the Pyrenees to the Carpathians and northward into Scandinavia and the British Isles. It thrives at altitudes up to 2,500 metres in the Alps and has been gathered as a wild food for thousands of years, with archaeological evidence of its use dating back to Neolithic settlements.
The plant was formally cultivated from at least the medieval period, becoming one of the most important potherbs in European cottage gardens and monastery plots from the 12th century onward. It was grown across England, Germany, the Netherlands, and Scandinavia as a reliable perennial vegetable that provided three distinct harvests: asparagus-like spring shoots, spinach-like summer leaves, and broccoli-like flower buds. In an era before refrigeration and global trade, a perennial vegetable that reliably produced food year after year with minimal care was enormously valuable to subsistence households.
The plant's popularity began to decline after spinach was introduced to European gardens from Persia in the medieval period. Spinach grew faster, produced more abundantly in its first year, and had a milder flavor that suited changing tastes. By the 18th century, Good King Henry had largely retreated from market gardens to cottage plots and wild margins. English colonists brought it to North America, where it naturalized in parts of New England and eastern Canada but never achieved widespread cultivation. Today, Good King Henry is experiencing a modest revival among permaculture practitioners and heritage vegetable enthusiasts who value its extraordinary longevity, minimal care requirements, and role as a rare edible perennial in the temperate vegetable garden.
Good King Henry: did you know?
Fascinating facts about Good King Henry
Good King Henry (Chenopodium bonus-henricus) is named not after any English king but after the German folklore figure Heinrich, a helpful household elf — the 'Good' distinguishes it from the poisonous 'Bad Henry' (Mercurialis perennis, dog's mercury).
Good King Henry questions, answered
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Is Good King Henry the same as lamb's quarters or fat hen?
What growing zones are suitable for Good King Henry?
How do I propagate Good King Henry if seed germination is so difficult?
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From the “Overview” sectionPlant these alongside Good King Henry
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