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-1.4°
Last 24h: Slight frost recorded tonight at 03:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 6 May Frost 9 of 10 years · 20 years of data
Frost-free season 108 days 6 May – 22 Aug
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
18 Mar – 1 Apr
11 Jun
5-7 wk
6 May
16 Jul
0 wk
7 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
25 Mar – 8 Apr
23 Jun
4-6 wk
6 May
21 Jul
0 wk
7 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
22 Feb – 22 Mar
8-12 wk
17 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Mar – 1 Apr
6 Jun
5-7 wk
6 May
11 Jul
0 wk
6 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
19 – 26 Apr
3-4 wk
17 May
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
21 – 28 Apr
15 May
4-5 wk
26 May
12 Jun
3 wk after
31 May
2 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 May
3-4 wk
16 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
11 Feb – 11 Mar
11 Mar
8-12 wk
6 May
6 May
0 wk
19 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
26 May
0 wk
7 May
16 May
0 wk
Maize
Zea mays
Season too short
12 – 19 Apr
3-4 wk
10 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 Apr
11 Jun
3-4 wk
12 May
2 Jul
1 wk after
19 May
22 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 May
25 Jun
0 wk
6 May
15 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Mar – 1 Apr
6 Jun
5-7 wk
6 May
11 Jul
0 wk
6 May
1 Jul
0 wk
Potato
Solanum tuberosum
4 – 18 Apr
29 Apr
4-6 wk
16 May
27 May
1 wk after
16 May
17 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Mar – 1 Apr
10 Jun
5-7 wk
6 May
15 Jul
0 wk
7 May
5 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
19 – 26 Apr
3-4 wk
17 May
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 Apr
11 May
3-4 wk
12 May
1 Jun
1 wk after
19 May
22 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Mar – 8 Apr
18 Jun
4-6 wk
6 May
16 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 Apr
29 Jun
3-4 wk
6 May
20 Jul
0 wk
7 May
10 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Mar – 8 Apr
18 Jun
4-6 wk
6 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 Apr
13 May
2-4 wk
6 May
27 May
0 wk
6 May
17 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
26 May
0 wk
7 May
16 May
0 wk
Spinach
Spinacia oleracea
8 – 15 Apr
18 Jul
3-4 wk
6 May
8 Aug
0 wk
3 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
31 May – 14 Jun
4-6 wk
12 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
15 – 29 Mar
6-8 wk
10 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
12 – 26 Apr
2-4 wk
10 May
1 wk after
19 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Mar – 8 Apr
18 Jun
4-6 wk
6 May
16 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 Apr
14 Jun
3-4 wk
6 May
5 Jul
0 wk
7 May
25 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Season too short
5 – 19 Apr
4-6 wk
17 May
2 wk after
Lemon balm
Melissa officinalis
25 Feb – 11 Mar
10 May
8-10 wk
6 May
5 Jul
0 wk
31 May
25 Jun
4 wk after
Dill
Anethum graveolens
7 May
2 Jul
0 wk
Wild chives
Allium schoenoprasum
11 – 25 Mar
30 May
6-8 wk
6 May
11 Jul
0 wk
7 May
1 Jul
0 wk
Spearmint
Mentha spicata
11 Feb – 11 Mar
16 May
8-12 wk
6 May
11 Jul
0 wk
31 May
1 Jul
4 wk after
Coriander
Coriandrum sativum
6 May
22 Jul
0 wk
19 May
12 Jul
2 wk after
Garden sage
Salvia officinalis
3 – 17 Mar
1 May
8-10 wk
12 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
25 Feb – 11 Mar
6 May
8-10 wk
6 May
1 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Mar
20 May
6-8 wk
6 May
1 Jul
0 wk
31 May
21 Jun
4 wk after
Parsley
Petroselinum crispum
11 – 25 Mar
20 May
6-8 wk
6 May
1 Jul
0 wk
7 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
28 Jan – 25 Feb
23 Mar
10-14 wk
6 May
1 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Season too short
19 – 26 Apr
3-4 wk
17 May
2 wk after
Cornflower
Centaurea cyanus
6 May
11 Jul
0 wk
7 May
1 Jul
0 wk
Statice
Limonium sinuatum
Season too short
1 – 15 Mar
18 Mar
8-10 wk
10 May
13 May
1 wk after
Sweet William
Dianthus barbatus
11 – 25 Mar
6-8 wk
6 May
0 wk
16 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
15 – 29 Mar
1 Apr
6-8 wk
10 May
13 May
1 wk after
7 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
11 – 25 Mar
4 Apr
6-8 wk
6 May
16 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
17 Mar – 14 Apr
18 Apr
4-8 wk
12 May
16 May
1 wk after
12 May
1 wk after
Foxglove
Digitalis purpurea
25 Feb – 11 Mar
8-10 wk
6 May
0 wk
19 May
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
22 Feb – 22 Mar
27 Apr
8-12 wk
17 May
22 Jun
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
15 – 29 Mar
11 Apr
6-8 wk
10 May
23 May
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
14 – 28 Apr
4-6 wk
26 May
3 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Mar
28 Mar
8-10 wk
12 May
23 May
1 wk after
Love in a mist
Nigella damascena
6 May
20 Jun
0 wk
7 May
10 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
15 – 29 Mar
22 Mar
6-8 wk
10 May
1 wk after
7 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
17 Feb – 17 Mar
28 Mar
8-12 wk
12 May
23 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
15 Feb – 15 Mar
15 Mar
8-12 wk
10 May
10 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
22 Feb – 22 Mar
8-12 wk
17 May
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
22 Mar – 5 Apr
6-8 wk
17 May
2 wk after
Corn poppy
Papaver rhoeas
6 May
5 Jul
0 wk
7 May
25 Jun
0 wk
Snapdragon
Antirrhinum majus
11 Feb – 11 Mar
30 Apr
8-12 wk
6 May
25 Jun
0 wk
16 May
15 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
8 – 22 Mar
28 Mar
8-10 wk
17 May
23 May
2 wk after
Sweet pea
Lathyrus odoratus
11 Mar – 1 Apr
27 May
5-8 wk
6 May
1 Jul
0 wk
Stock
Matthiola incana
11 – 25 Mar
24 May
6-8 wk
6 May
5 Jul
0 wk
19 May
25 Jun
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Mar
30 Apr
6-8 wk
6 May
11 Jun
0 wk
19 May
1 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
5 – 19 Apr
4-6 wk
17 May
2 wk after
Garden pansy
Viola × wittrockiana
25 Feb – 11 Mar
16 May
8-10 wk
6 May
11 Jul
0 wk
16 May
1 Jul
1 wk after
Petunia
Petunia
Season too short
15 Feb – 15 Mar
18 Mar
8-12 wk
10 May
13 May
1 wk after
Sweet Scabious
Scabiosa atropurpurea
17 – 31 Mar
11 Apr
6-8 wk
12 May
23 May
1 wk after
18 Jun
6 wk after
Common zinnia
Zinnia elegans
Season too short
29 Mar – 12 Apr
9 Apr
4-6 wk
10 May
1 wk after
Common morning glory
Ipomoea purpurea
Season too short
12 – 26 Apr
3-5 wk
17 May
2 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
29 Mar – 12 Apr
18 Apr
4-6 wk
10 May
16 May
1 wk after
19 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
3 – 31 Mar
3 Mar
8-12 wk
26 May
3 wk after
Bee balm
Monarda didyma
11 Feb – 11 Mar
10 Apr
8-12 wk
6 May
5 Jun
0 wk
31 May
4 wk after
Yarrow
Achillea millefolium
11 – 25 Mar
31 Mar
6-8 wk
6 May
12 May
0 wk
19 May
2 wk after
Safflower
Carthamus tinctorius
6 May
9 Jun
0 wk
7 May
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Mar
20 May
6-8 wk
6 May
1 Jul
0 wk
20 Apr
21 Jun
2 wk before
Bishop's flower
Ammi majus
25 Mar – 8 Apr
28 May
4-6 wk
6 May
25 Jun
0 wk
19 May
15 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
22 Feb – 8 Mar
10-12 wk
17 May
2 wk after
Sunflower
Helianthus annuus
28 Apr – 5 May
13 May
3-4 wk
26 May
3 Jun
3 wk after
31 May
4 wk after
China aster
Callistephus chinensis
31 Mar – 14 Apr
2 May
6-8 wk
26 May
13 Jun
3 wk after
18 Jun
6 wk after
Annual phlox
Phlox drummondii
Greenhouse
11 – 25 Mar
11 Apr
6-8 wk
6 May
23 May
0 wk
19 May
2 wk after
Hollyhock
Alcea rosea
11 – 25 Mar
6-8 wk
6 May
0 wk
19 May
2 wk after
Alpine delphinium
Delphinium elatum
11 Feb – 11 Mar
10 Apr
8-12 wk
6 May
5 Jun
0 wk
31 May
4 wk after
African marigold
Tagetes erecta
Greenhouse
15 – 29 Mar
11 Apr
6-8 wk
10 May
23 May
1 wk after
Black-eyed Susan
Rudbeckia hirta
17 – 31 Mar
22 Apr
6-8 wk
12 May
3 Jun
1 wk after
18 Jun
6 wk after
Wood sage
Salvia nemorosa
25 Feb – 11 Mar
31 Mar
8-10 wk
6 May
26 May
0 wk
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
8 Mar – 5 Apr
6-10 wk
17 May
2 wk after
California goldenpoppy
Eschscholzia californica
6 May
1 Jul
0 wk
7 May
21 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
8 – 22 Mar
17 Apr
8-10 wk
17 May
12 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Mar
30 Apr
6-8 wk
6 May
11 Jun
0 wk
19 May
1 Jun
2 wk after