The illustrated growing guide
Red Clover
Trifolium pratense
Family Fabaceae
Est. zones 3-8

Short-lived perennial cover crop and tea flower: fixes nitrogen, feeds bees, and gives pink flower heads for traditional tea blends. Best as a managed patch, path edge, or living mulch, not a permanent lawn.

From the print shop
Growing red clover? Hang it.
Our Tea Herbs collection carries red clover — Trifolium pratense, print Nº 9, “Red Clover.”
16 designsfrom $21.99white or black groundmatte poster, unframed
I
Overview
Will red clover suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what red clover actually needs.
Red Clover at a glance
Common red clover problems
- Aphids
- Clover Root Curculio
- Powdery Mildew
- Root Rot
II
Growing
Light, water, soil, propagation and the season’s jobs.
How to grow red clover: light, water & soil
How to plant & propagate red clover
When to spray red clover
Growing season. Rotate or thin dense stands if disease builds.
The red clover growing playbook
Field-tested instructions for every job red clover asks of you, compiled from university extension guidance — in the order the season brings them.
Harvesting
Dry red clover blossomsMay – Sep
Clip clean newly opened flower heads and dry quickly before browning. Fresh pink heads make the best tea and leave the plant to rebloom.
⚠ Avoid medicinal use with blood thinners or pregnancy unless advised.
III
The year
What red clover asks for, month by month.
The red clover year, month by month
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
The red clover year as text
- Jan quiet month
- Feb quiet month
- Mar quiet month
- Apr quiet month
- May bloom
- Jun quiet month
- Jul quiet month
- Aug quiet month
- Sep bloom
- Oct bloom
- Nov bloom
- Dec quiet month
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
IV
Ecology & uses
What it does for the garden, and what it is grown for.
Red Clover in the garden system
- Herbaceous layer perennial
- N-fixer
- Nectary/insectary
What red clover is grown for
! Some parts toxic — see notesCaution: medicinal tea; avoid with blood thinners, hormone-sensitive conditions, or pregnancy unless advised
Harvesting & storing red clover
Flower heads as they open; dry quickly for tea.
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
V
Cultivars
Named varieties of red clover, ruled as a catalogue.
Best red clover varieties & cultivars
Species; medium red clover; mammoth red clover
VI
Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to red cloveryet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
VII
Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
VIII
Questions
Red Clover questions, answered straight.
Is red clover safe for kids and pets?
With care. Caution: medicinal tea; avoid with blood thinners, hormone-sensitive conditions, or pregnancy unless advised Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
When do you harvest red clover?
Flower heads as they open; dry quickly for tea.
How do you propagate red clover?
Division or seed.
IX
Elsewhere
Where red clover sits in the library.
Mullein
Feverfew
Valerian
St. John's Wort