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-0.2°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 2 May Frost 9 of 10 years · 20 years of data
Frost-free season 138 days 2 May – 17 Sep
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)
14 – 28 Mar
16 Jun
5-7 wk
2 May
21 Jul
0 wk
25 Apr
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
21 Mar – 4 Apr
28 Jun
4-6 wk
2 May
26 Jul
0 wk
25 Apr
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
18 Feb – 18 Mar
8-12 wk
13 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Mar
11 Jun
5-7 wk
2 May
16 Jul
0 wk
20 Apr
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
15 – 22 Apr
3-4 wk
13 May
2 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 May
24 May
4-5 wk
7 Jun
21 Jun
5 wk after
7 Jun
11 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
17 – 24 May
3-4 wk
14 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
7 Feb – 7 Mar
28 Mar
8-12 wk
2 May
23 May
0 wk
12 May
13 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 Apr
12 Jun
1 wk before
25 Apr
2 Jun
1 wk before
Maize
Zea mays
Season too short
4 – 11 Apr
3-4 wk
2 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 Apr
28 Jun
3-4 wk
8 May
19 Jul
1 wk after
12 May
9 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 May
6 Jul
0 wk
20 Apr
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Mar
11 Jun
5-7 wk
2 May
16 Jul
0 wk
20 Apr
6 Jul
2 wk before
Potato
Solanum tuberosum
26 Mar – 9 Apr
27 May
4-6 wk
7 May
24 Jun
1 wk after
7 May
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Mar
21 Jun
5-7 wk
2 May
26 Jul
0 wk
25 Apr
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
15 – 22 Apr
15 May
3-4 wk
13 May
5 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 Apr
8 Jun
3-4 wk
8 May
29 Jun
1 wk after
12 May
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Mar – 4 Apr
23 Jun
4-6 wk
2 May
21 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 Apr
10 Jul
3-4 wk
2 May
31 Jul
0 wk
25 Apr
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Mar – 4 Apr
23 Jun
4-6 wk
2 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Mar – 6 Apr
31 May
2-4 wk
20 Apr
14 Jun
2 wk before
20 Apr
4 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 Apr
12 Jun
1 wk before
25 Apr
2 Jun
1 wk before
Spinach
Spinacia oleracea
4 – 11 Apr
25 Jul
3-4 wk
2 May
15 Aug
0 wk
14 Apr
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
29 May – 12 Jun
4-6 wk
10 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
7 – 21 Mar
6-8 wk
2 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
4 – 18 Apr
17 May
2-4 wk
2 May
31 May
0 wk
12 May
21 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Mar – 4 Apr
23 Jun
4-6 wk
2 May
21 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 Apr
25 Jun
3-4 wk
2 May
16 Jul
0 wk
25 Apr
6 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
1 – 15 Apr
23 Apr
4-6 wk
13 May
21 May
2 wk after
Lemon balm
Melissa officinalis
21 Feb – 7 Mar
21 May
8-10 wk
2 May
16 Jul
0 wk
23 May
6 Jul
3 wk after
Dill
Anethum graveolens
25 Apr
19 Jul
1 wk before
Wild chives
Allium schoenoprasum
7 – 21 Mar
4 Jun
6-8 wk
2 May
16 Jul
0 wk
25 Apr
6 Jul
1 wk before
Spearmint
Mentha spicata
7 Feb – 7 Mar
21 May
8-12 wk
2 May
16 Jul
0 wk
23 May
6 Jul
3 wk after
Coriander
Coriandrum sativum
2 May
8 Aug
0 wk
12 May
29 Jul
1 wk after
Garden sage
Salvia officinalis
27 Feb – 13 Mar
6 May
8-10 wk
8 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
21 Feb – 7 Mar
11 May
8-10 wk
2 May
6 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Mar
25 May
6-8 wk
2 May
6 Jul
0 wk
23 May
26 Jun
3 wk after
Parsley
Petroselinum crispum
7 – 21 Mar
25 May
6-8 wk
2 May
6 Jul
0 wk
25 Apr
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
30 Jan – 27 Feb
27 Mar
10-14 wk
8 May
5 Jun
1 wk after

Annual flowers

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