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-3.1°
Last 24h: Slight frost recorded last night at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 4 May Frost 9 of 10 years · 20 years of data
Frost-free season 124 days 4 May – 5 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)
16 – 30 Mar
17 Jun
5-7 wk
4 May
22 Jul
0 wk
27 Apr
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
23 Mar – 6 Apr
29 Jun
4-6 wk
4 May
27 Jul
0 wk
27 Apr
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
20 Feb – 20 Mar
8-12 wk
15 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Mar
12 Jun
5-7 wk
4 May
17 Jul
0 wk
22 Apr
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
17 – 24 Apr
3-4 wk
15 May
2 wk after
Florence Fennel
Foeniculum vulgare
5 – 12 May
21 May
4-5 wk
9 Jun
18 Jun
5 wk after
9 Jun
5 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)
9 Feb – 9 Mar
28 Mar
8-12 wk
4 May
23 May
0 wk
14 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Apr
12 Jun
1 wk before
27 Apr
2 Jun
1 wk before
Maize
Zea mays
Season too short
6 – 13 Apr
3-4 wk
4 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 Apr
3 Jul
3-4 wk
10 May
24 Jul
1 wk after
14 May
14 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 May
7 Jul
0 wk
22 Apr
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Mar
12 Jun
5-7 wk
4 May
17 Jul
0 wk
22 Apr
7 Jul
2 wk before
Potato
Solanum tuberosum
28 Mar – 11 Apr
27 May
4-6 wk
9 May
24 Jun
1 wk after
9 May
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Mar
22 Jun
5-7 wk
4 May
27 Jul
0 wk
27 Apr
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
17 – 24 Apr
22 May
3-4 wk
15 May
12 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
12 – 19 Apr
9 Jun
3-4 wk
10 May
30 Jun
1 wk after
14 May
20 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Mar – 6 Apr
24 Jun
4-6 wk
4 May
22 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 Apr
11 Jul
3-4 wk
4 May
1 Aug
0 wk
27 Apr
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Mar – 6 Apr
24 Jun
4-6 wk
4 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Mar – 8 Apr
31 May
2-4 wk
22 Apr
14 Jun
2 wk before
22 Apr
4 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 Apr
12 Jun
1 wk before
27 Apr
2 Jun
1 wk before
Spinach
Spinacia oleracea
6 – 13 Apr
26 Jul
3-4 wk
4 May
16 Aug
0 wk
16 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
31 May – 14 Jun
4-6 wk
12 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Mar
6-8 wk
4 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
6 – 20 Apr
24 May
2-4 wk
4 May
7 Jun
0 wk
14 May
28 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Mar – 6 Apr
24 Jun
4-6 wk
4 May
22 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 Apr
26 Jun
3-4 wk
4 May
17 Jul
0 wk
27 Apr
7 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
3 – 17 Apr
30 Apr
4-6 wk
15 May
28 May
2 wk after
Lemon balm
Melissa officinalis
23 Feb – 9 Mar
22 May
8-10 wk
4 May
17 Jul
0 wk
25 May
7 Jul
3 wk after
Dill
Anethum graveolens
27 Apr
24 Jul
1 wk before
Wild chives
Allium schoenoprasum
9 – 23 Mar
5 Jun
6-8 wk
4 May
17 Jul
0 wk
27 Apr
7 Jul
1 wk before
Spearmint
Mentha spicata
9 Feb – 9 Mar
22 May
8-12 wk
4 May
17 Jul
0 wk
25 May
7 Jul
3 wk after
Coriander
Coriandrum sativum
4 May
13 Aug
0 wk
14 May
3 Aug
1 wk after
Garden sage
Salvia officinalis
1 – 15 Mar
7 May
8-10 wk
10 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
23 Feb – 9 Mar
12 May
8-10 wk
4 May
7 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Mar
26 May
6-8 wk
4 May
7 Jul
0 wk
25 May
27 Jun
3 wk after
Parsley
Petroselinum crispum
9 – 23 Mar
26 May
6-8 wk
4 May
7 Jul
0 wk
27 Apr
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
1 Feb – 1 Mar
27 Mar
10-14 wk
10 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
17 – 24 Apr
7 May
3-4 wk
15 May
28 May
2 wk after
Cornflower
Centaurea cyanus
4 May
17 Jul
0 wk
27 Apr
7 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
6 – 20 Mar
26 Mar
8-10 wk
15 May
21 May
2 wk after
Sweet William
Dianthus barbatus
9 – 23 Mar
6-8 wk
4 May
0 wk
9 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
20 Mar – 3 Apr
9 Apr
6-8 wk
15 May
21 May
2 wk after
19 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
23 Mar – 6 Apr
6 Apr
6-8 wk
18 May
18 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
30 Mar – 27 Apr
20 Apr
4-8 wk
25 May
3 wk after
25 May
3 wk after
Foxglove
Digitalis purpurea
23 Feb – 9 Mar
8-10 wk
4 May
0 wk
14 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
28 Feb – 28 Mar
18 May
8-12 wk
23 May
13 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
20 Mar – 3 Apr
19 Apr
6-8 wk
15 May
31 May
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 Apr
4-6 wk
23 May
3 wk after
Chinese lantern
Physalis alkekengi
1 – 15 Mar
19 Apr
8-10 wk
10 May
14 Jun
1 wk after
Love in a mist
Nigella damascena
4 May
2 Jul
0 wk
27 Apr
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
20 Mar – 3 Apr
30 Mar
6-8 wk
15 May
2 wk after
19 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
15 Feb – 15 Mar
19 Apr
8-12 wk
10 May
14 Jun
1 wk after
Cardoon
Cynara cardunculus
28 Feb – 28 Mar
20 Mar
8-12 wk
23 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
20 Feb – 20 Mar
23 Mar
8-12 wk
15 May
18 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
20 Mar – 3 Apr
6 Apr
6-8 wk
15 May
18 May
2 wk after
Corn poppy
Papaver rhoeas
4 May
17 Jul
0 wk
27 Apr
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
9 Feb – 9 Mar
12 May
8-12 wk
4 May
7 Jul
0 wk
9 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
14 – 28 Mar
5 Apr
8-10 wk
23 May
31 May
3 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Mar
2 Jun
5-8 wk
4 May
7 Jul
0 wk
Stock
Matthiola incana
9 – 23 Mar
5 Jun
6-8 wk
4 May
17 Jul
0 wk
14 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
9 – 23 Mar
6 May
6-8 wk
4 May
17 Jun
0 wk
14 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
3 – 17 Apr
15 Apr
4-6 wk
15 May
2 wk after
Garden pansy
Viola × wittrockiana
23 Feb – 9 Mar
22 May
8-10 wk
4 May
17 Jul
0 wk
9 May
7 Jul
1 wk after
Petunia
Petunia
Fleece
20 Feb – 20 Mar
26 Mar
8-12 wk
15 May
21 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
15 – 29 Mar
3 May
6-8 wk
10 May
14 Jun
1 wk after
9 Jun
5 wk after
Common zinnia
Zinnia elegans
Fleece
3 – 17 Apr
30 Apr
4-6 wk
15 May
28 May
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
10 – 24 Apr
7 May
3-5 wk
15 May
28 May
2 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 Apr
20 Apr
4-6 wk
23 May
3 wk after
9 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
28 Feb – 28 Mar
22 Apr
8-12 wk
23 May
17 Jun
3 wk after
Bee balm
Monarda didyma
9 Feb – 9 Mar
22 Apr
8-12 wk
4 May
17 Jun
0 wk
25 May
7 Jun
3 wk after
Yarrow
Achillea millefolium
9 – 23 Mar
6 Apr
6-8 wk
4 May
18 May
0 wk
14 May
1 wk after
Safflower
Carthamus tinctorius
4 May
17 Jun
0 wk
27 Apr
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Mar
26 May
6-8 wk
4 May
7 Jul
0 wk
26 Mar
27 Jun
6 wk before
Bishop's flower
Ammi majus
23 Mar – 6 Apr
9 Jun
4-6 wk
4 May
7 Jul
0 wk
14 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
20 Feb – 6 Mar
21 Feb
10-12 wk
15 May
2 wk after
Sunflower
Helianthus annuus
25 Apr – 2 May
4 Jun
3-4 wk
23 May
25 Jun
3 wk after
25 May
15 Jun
3 wk after
China aster
Callistephus chinensis
28 Mar – 11 Apr
24 May
6-8 wk
23 May
5 Jul
3 wk after
9 Jun
25 Jun
5 wk after
Annual phlox
Phlox drummondii
Fleece
9 – 23 Mar
19 Apr
6-8 wk
4 May
31 May
0 wk
25 May
3 wk after
Hollyhock
Alcea rosea
9 – 23 Mar
6-8 wk
4 May
0 wk
14 May
1 wk after
Alpine delphinium
Delphinium elatum
9 Feb – 9 Mar
22 Apr
8-12 wk
4 May
17 Jun
0 wk
25 May
7 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
20 Mar – 3 Apr
19 Apr
6-8 wk
15 May
31 May
2 wk after
Black-eyed Susan
Rudbeckia hirta
15 – 29 Mar
14 May
6-8 wk
10 May
25 Jun
1 wk after
9 Jun
15 Jun
5 wk after
Wood sage
Salvia nemorosa
23 Feb – 9 Mar
12 Apr
8-10 wk
4 May
7 Jun
0 wk
25 May
28 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
6 Mar – 3 Apr
16 Apr
6-10 wk
15 May
28 May
2 wk after
California goldenpoppy
Eschscholzia californica
4 May
17 Jul
0 wk
27 Apr
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
14 – 28 Mar
23 Apr
8-10 wk
23 May
18 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Mar
6 May
6-8 wk
4 May
17 Jun
0 wk
14 May
7 Jun
1 wk after