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-4.9°
Moderate frost tomorrow morning at 06:00. Frost temperatures between 21:00 – tomorrow 23:00. Bring in or cover sensitive plants
-3.0°
Last 24h: Slight frost recorded this morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 10 May Normal year · 20 years of data
Frost-free season 144 days 10 May – 1 Oct

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
27 Mar – 10 Apr
5-7 wk
15 May
1 wk after
28 Apr
2 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
6 May
1 wk after
Chili pepper
Capsicum annuum
Season too short
24 Mar – 21 Apr
8-12 wk
16 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
3 wk before
2 May
Vid frost
Cucumber
Cucumis sativus
Greenhouse
19 – 26 May
3-4 wk
16 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
12 – 19 May
4-5 wk
16 Jun
5 wk after
31 May
3 wk after
Butter bean
Phaseolus lunatus
Greenhouse
31 May – 7 Jun
3-4 wk
28 Jun
7 wk after
Onion
Allium cepa (Cepa-gruppen)
15 Feb – 15 Mar
8-12 wk
10 May
Vid frost
23 May
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
3 wk after
Sweetcorn
Zea mays
Fleece
10 – 17 Jun
3-4 wk
8 Jul
8 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 May
3-4 wk
9 Jun
5 wk after
23 May
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 May
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
3 wk before
2 May
Vid frost
Potato
Solanum tuberosum
16 – 30 May
4-6 wk
27 Jun
7 wk after
18 May
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
3 wk before
6 May
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
19 – 26 May
3-4 wk
16 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
12 – 19 May
3-4 wk
9 Jun
5 wk after
23 May
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
Lettuce
Lactuca sativa
5 – 12 Apr
3-4 wk
3 May
1 wk before
6 May
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Mar – 5 Apr
4-6 wk
3 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Mar – 11 Apr
2-4 wk
25 Apr
2 wk before
2 May
Vid frost
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 May
1 wk after
Spinach
Spinacia oleracea
28 Mar – 4 Apr
3-4 wk
25 Apr
2 wk before
27 Apr
1 wk before
Sweet potato
Ipomoea batatas
28 May – 11 Jun
4-6 wk
9 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
19 May – 2 Jun
2-4 wk
16 Jun
5 wk after
14 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
Pea
Pisum sativum
28 Mar – 4 Apr
3-4 wk
25 Apr
2 wk before
6 May
1 wk after
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
27 May – 10 Jun
4-6 wk
8 Jul
8 wk after
Lemon balm
Melissa officinalis
1 – 15 Mar
8-10 wk
10 May
Vid frost
4 Jun
5 wk after
Dill
Anethum graveolens
6 May
1 wk after
Chives
Allium schoenoprasum
19 Feb – 5 Mar
6-8 wk
16 Apr
3 wk before
6 May
1 wk after
Spearmint
Mentha spicata
31 Jan – 28 Feb
8-12 wk
25 Apr
2 wk before
4 Jun
5 wk after
Coriander
Coriandrum sativum
23 May
3 wk after
Sage
Salvia officinalis
Fleece
20 Mar – 3 Apr
8-10 wk
29 May
3 wk after
Thyme
Thymus vulgaris
18 Mar – 1 Apr
8-10 wk
27 May
3 wk after
Oregano
Origanum vulgare
21 Mar – 4 Apr
6-8 wk
16 May
1 wk after
4 Jun
5 wk after
Parsley
Petroselinum crispum
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
6 May
1 wk after
Rosemary
Salvia rosmarinus
Greenhouse
6 Feb – 6 Mar
10-14 wk
15 May
1 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
28 May – 4 Jun
3-4 wk
25 Jun
7 wk after
Cornflower
Centaurea cyanus
25 Apr
2 wk before
6 May
1 wk after
Statice
Limonium sinuatum
Greenhouse
26 Mar – 9 Apr
8-10 wk
4 Jun
4 wk after
Sweet William
Dianthus barbatus
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
18 May
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
20 Jun
6 wk after
Dahlia
Dahlia × pinnata
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
Dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
4-8 wk
22 Jun
6 wk after
4 Jun
5 wk after
Foxglove
Digitalis purpurea
14 – 28 Feb
8-10 wk
25 Apr
2 wk before
23 May
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
2 – 30 Apr
8-12 wk
25 Jun
7 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
21 Apr – 5 May
6-8 wk
16 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
14 – 28 May
4-6 wk
25 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
6 – 20 Mar
8-10 wk
15 May
1 wk after
Love in a mist
Nigella damascena
6 May
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
20 Jun
6 wk after
Tall verbena
Verbena bonariensis
Greenhouse
20 Feb – 20 Mar
8-12 wk
15 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
24 Mar – 21 Apr
8-12 wk
16 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
21 Apr – 5 May
6-8 wk
16 Jun
5 wk after
Corn poppy
Papaver rhoeas
6 May
1 wk after
Snapdragon
Antirrhinum majus
8 Feb – 8 Mar
8-12 wk
3 May
1 wk before
18 May
2 wk after
Flossflower
Ageratum houstonianum
Season too short
7 – 21 Apr
8-10 wk
16 Jun
5 wk after
Sweet pea
Lathyrus odoratus
28 Feb – 21 Mar
5-8 wk
25 Apr
2 wk before
Stock
Matthiola incana
8 – 22 Mar
6-8 wk
3 May
1 wk before
23 May
3 wk after
Wormwood
Artemisia absinthium
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
23 May
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
5 – 19 May
4-6 wk
16 Jun
5 wk after
Pansy
Viola × wittrockiana
5 – 19 Feb
8-10 wk
16 Apr
3 wk before
18 May
2 wk after
Petunia
Petunia
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
20 Mar – 3 Apr
6-8 wk
15 May
1 wk after
31 May
3 wk after
Zinnia
Zinnia elegans
Greenhouse
23 Apr – 7 May
4-6 wk
4 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
12 – 26 May
3-5 wk
16 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
23 Apr – 7 May
4-6 wk
4 Jun
4 wk after
31 May
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
2 – 30 Apr
8-12 wk
25 Jun
7 wk after
Bee balm
Monarda didyma
15 Feb – 15 Mar
8-12 wk
10 May
Vid frost
4 Jun
5 wk after
Yarrow
Achillea millefolium
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
23 May
3 wk after
Safflower
Carthamus tinctorius
25 Apr
2 wk before
6 May
1 wk after
Iceland poppy
Papaver nudicaule
19 Feb – 5 Mar
6-8 wk
16 Apr
3 wk before
2 May
Vid frost
Bishop's flower
Ammi majus
9 – 23 Apr
4-6 wk
21 May
1 wk after
23 May
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
24 Mar – 7 Apr
10-12 wk
16 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
7 – 14 May
3-4 wk
4 Jun
4 wk after
20 May
1 wk after
China aster
Callistephus chinensis
Season too short
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
31 May
3 wk after
Annual phlox
Phlox drummondii
20 Apr – 4 May
6-8 wk
15 Jun
5 wk after
20 Jun
7 wk after
Hollyhock
Alcea rosea
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
23 May
3 wk after
Delphinium
Delphinium elatum
4 Mar – 1 Apr
8-12 wk
27 May
3 wk after
4 Jun
5 wk after
African marigold
Tagetes erecta
Greenhouse
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
3 – 17 Apr
6-8 wk
29 May
3 wk after
14 Jun
5 wk after
Woodland sage
Salvia nemorosa
7 – 21 Mar
8-10 wk
16 May
1 wk after
4 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
7 Apr – 5 May
6-10 wk
16 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
6 May
1 wk after
Painted tongue
Salpiglossis sinuata
Greenhouse
26 Mar – 9 Apr
8-10 wk
4 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
28 Feb – 14 Mar
6-8 wk
25 Apr
2 wk before
23 May
3 wk after
Current date Soon Date passed