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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 103 days 13 Jun – 24 Sep
Probability that frost is over

90% = 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)
25 Apr – 9 May
10 Jun
5-7 wk
13 Jun
15 Jul
0 wk
14 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
22 Jun
4-6 wk
13 Jun
20 Jul
0 wk
14 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
5 Jun
5-7 wk
13 Jun
10 Jul
0 wk
13 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
22 – 29 May
3-4 wk
19 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
2 Jun
4-5 wk
26 Jun
30 Jun
2 wk after
8 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
24 Jun – 1 Jul
3-4 wk
22 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
21 Mar – 18 Apr
26 Mar
8-12 wk
13 Jun
0 wk
13 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
10 Jun
0 wk
10 Jun
0 wk
Maize
Zea mays
Season too short
16 – 23 May
3-4 wk
13 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
29 Jun
3-4 wk
15 Jun
20 Jul
0 wk
26 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
30 Jun
0 wk
13 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
5 Jun
5-7 wk
13 Jun
10 Jul
0 wk
13 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Fleece
3 – 17 May
19 May
4-6 wk
14 Jun
16 Jun
0 wk
14 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
15 Jun
5-7 wk
13 Jun
20 Jul
0 wk
14 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
22 – 29 May
3-4 wk
19 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
18 – 25 May
19 May
3-4 wk
15 Jun
0 wk
26 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
17 Jun
4-6 wk
13 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
4 Jul
3-4 wk
13 Jun
25 Jul
0 wk
14 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
17 Jun
4-6 wk
13 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 May
2-4 wk
13 Jun
0 wk
13 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
10 Jun
0 wk
10 Jun
0 wk
Spinach
Spinacia oleracea
16 – 23 May
19 Jul
3-4 wk
13 Jun
9 Aug
0 wk
10 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
8 – 22 Jul
4-6 wk
19 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
16 – 30 May
2-4 wk
13 Jun
0 wk
26 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
17 Jun
4-6 wk
13 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
19 Jun
3-4 wk
13 Jun
10 Jul
0 wk
14 Jun
30 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
8 – 22 May
4-6 wk
19 Jun
1 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
15 May
8-10 wk
13 Jun
10 Jul
0 wk
8 Jul
4 wk after
Dill
Anethum graveolens
14 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
18 Apr – 2 May
29 May
6-8 wk
13 Jun
10 Jul
0 wk
14 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
21 Mar – 18 Apr
15 May
8-12 wk
13 Jun
10 Jul
0 wk
8 Jul
4 wk after
Coriander
Coriandrum sativum
13 Jun
9 Aug
0 wk
26 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
30 Apr
8-10 wk
15 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
4 – 18 Apr
5 May
8-10 wk
13 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
19 May
6-8 wk
13 Jun
30 Jun
0 wk
8 Jul
4 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
19 May
6-8 wk
13 Jun
30 Jun
0 wk
14 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
1 Apr
10-14 wk
15 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
22 – 29 May
3-4 wk
19 Jun
1 wk after
Cornflower
Centaurea cyanus
13 Jun
10 Jul
0 wk
14 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
4 – 18 Apr
15 Apr
8-10 wk
13 Jun
0 wk
Sweet William
Dianthus barbatus
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
23 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
18 Apr – 2 May
29 Apr
6-8 wk
13 Jun
0 wk
15 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
20 Apr – 4 May
28 Apr
6-8 wk
15 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
24 Apr – 22 May
21 May
4-8 wk
19 Jun
1 wk after
19 Jun
1 wk after
Foxglove
Digitalis purpurea
4 – 18 Apr
8-10 wk
13 Jun
0 wk
26 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
3 Apr – 1 May
26 Apr
8-12 wk
26 Jun
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
18 Apr – 2 May
9 May
6-8 wk
13 Jun
20 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
2 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
15 Apr
8-10 wk
15 Jun
0 wk
Love in a mist
Nigella damascena
13 Jun
25 Jun
0 wk
14 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
18 Apr – 2 May
19 Apr
6-8 wk
13 Jun
0 wk
15 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
15 Apr
8-12 wk
15 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
21 Mar – 18 Apr
8-12 wk
13 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
24 Apr – 8 May
6-8 wk
19 Jun
1 wk after
Corn poppy
Papaver rhoeas
13 Jun
10 Jul
0 wk
14 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
5 May
8-12 wk
13 Jun
30 Jun
0 wk
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
10 – 24 Apr
25 Apr
8-10 wk
19 Jun
20 Jun
1 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
26 May
5-8 wk
13 Jun
30 Jun
0 wk
Stock
Matthiola incana
18 Apr – 2 May
29 May
6-8 wk
13 Jun
10 Jul
0 wk
26 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
29 Apr
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
8 – 22 May
4-6 wk
19 Jun
1 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
15 May
8-10 wk
13 Jun
10 Jul
0 wk
23 Jun
30 Jun
1 wk after
Petunia
Petunia
Greenhouse
21 Mar – 18 Apr
15 Apr
8-12 wk
13 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
29 Apr
6-8 wk
15 Jun
0 wk
26 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
2 – 16 May
22 May
4-6 wk
13 Jun
19 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
15 – 29 May
3-5 wk
19 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
8 – 22 May
12 May
4-6 wk
19 Jun
1 wk after
8 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
2 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
15 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
Yarrow
Achillea millefolium
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Safflower
Carthamus tinctorius
13 Jun
0 wk
14 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
19 May
6-8 wk
13 Jun
30 Jun
0 wk
28 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
2 – 16 May
2 Jun
4-6 wk
13 Jun
30 Jun
0 wk
26 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
27 Mar – 10 Apr
10-12 wk
19 Jun
1 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
9 Jun
3-4 wk
26 Jun
30 Jun
2 wk after
8 Jul
4 wk after
China aster
Callistephus chinensis
1 – 15 May
29 May
6-8 wk
26 Jun
10 Jul
2 wk after
26 Jul
6 wk after
Annual phlox
Phlox drummondii
Greenhouse
18 Apr – 2 May
9 May
6-8 wk
13 Jun
20 Jun
0 wk
26 Jun
2 wk after
Hollyhock
Alcea rosea
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Alpine delphinium
Delphinium elatum
21 Mar – 18 Apr
15 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
18 Apr – 2 May
9 May
6-8 wk
13 Jun
20 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
19 May
6-8 wk
15 Jun
30 Jun
0 wk
26 Jul
6 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
5 Apr
8-10 wk
13 Jun
0 wk
8 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
10 Apr – 8 May
6-10 wk
19 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
10 Jul
0 wk
14 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
17 Apr – 1 May
24 Apr
8-10 wk
26 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
29 Apr
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after