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🌍 Built for UK, USA, Canada & Worldwide Gardens Free Growing Guides for Every Region Love It or Your Money Back Secure Checkout Instant PDF Download Checked Against RHS, USDA & Agri-Food Canada Data Free Garden Layout Planner
How to Grow Good King Henry | Planting & Establishment
Move through the SoilCommander growing library like a course: keep the navigation in place, open the next lesson, and build your garden plan step by step.
Good king henry (Blitum bonus-henricus) — perennial.
Unlike an annual crop, the work here is front-loaded into establishment: get the planting and the site right and the same plants crop for several seasons.
Core growing advice on this page is checked against named horticultural and university-extension sources — see References.
Sow seed or plant into fertile, well-drained, organic-matter-rich soil in full or partial shade, sheltered position (RHS, Harvest to Table).
Establishment
1
Grows rapidly in ideal conditions once established; may need staking if it becomes tall (Harvest to Table).
Leafy cropping
3
Harvest leaves as required to keep the plant compact and cropping well; young shoots can also be blanched and eaten like asparagus (Harvest to Table, RHS).
Flowering and dormancy
6
Tiny yellowy-green flowers appear on the plant; as a hardy perennial, it dies back and re-sprouts each year, surviving most UK winters (RHS).
When to pick: RHS: "Harvest the leaves as required, to keep the plant compact and cropping well"; "only pick lightly in the first year after planting" to let the plant establish.
Storage
Best used fresh
Good King Henry, an Ancient British Perennial Green
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.
Plan next season before the problems start
This page gives you the thresholds; the planner turns them into your own calendar. It works from what you can observe and measure in your garden rather than from dates written for somebody else’s latitude.
Science-based growing guides · Thresholds that hold in any climate
This guide states the conditions the plant itself responds to — soil temperature, frost tolerance, day length — rather than dates, because the same calendar month means opposite seasons in the northern and southern hemispheres. Anything genuinely restricted to one part of the world is named as such rather than presented as universal. Written and maintained by our editorial team against international horticultural research and extension sources.
Sketch your exact plot shape, pick your crops, and get a spacing-accurate bed layout with companion pairings and a rotation plan. Spacing, companion pairings and rotation are the same in every climate and both hemispheres — pair the layout it gives you with when to plant to set your own timing from soil temperature.