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Method
Rel. frost
Last spring frost (0°C) 5 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 111 days 5 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)
17 Apr – 1 May
15 Jun
5-7 wk
5 Jun
20 Jul
0 wk
9 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
27 Jun
4-6 wk
5 Jun
25 Jul
0 wk
9 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
28 Mar – 25 Apr
8-12 wk
20 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Apr – 1 May
10 Jun
5-7 wk
5 Jun
15 Jul
0 wk
5 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
23 – 30 May
3-4 wk
20 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
13 – 20 Jun
4-5 wk
18 Jul
6 wk after
24 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
25 Jun – 2 Jul
3-4 wk
23 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Mar – 10 Apr
31 Mar
8-12 wk
5 Jun
0 wk
26 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
15 Jun
1 wk after
9 Jun
1 wk after
Maize
Zea mays
Season too short
9 – 16 May
3-4 wk
6 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 May
4 Jul
3-4 wk
13 Jun
25 Jul
1 wk after
26 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
5 Jul
0 wk
5 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Apr – 1 May
10 Jun
5-7 wk
5 Jun
15 Jul
0 wk
5 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
10 – 24 May
1 Jun
4-6 wk
21 Jun
29 Jun
2 wk after
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
20 Jun
5-7 wk
5 Jun
25 Jul
0 wk
9 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
23 – 30 May
26 May
3-4 wk
20 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 May
9 Jun
3-4 wk
13 Jun
30 Jun
1 wk after
26 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 May
9 Jul
3-4 wk
5 Jun
30 Jul
0 wk
9 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 May
1 Jun
2-4 wk
5 Jun
15 Jun
0 wk
5 Jun
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 Jun
15 Jun
1 wk after
9 Jun
1 wk after
Spinach
Spinacia oleracea
8 – 15 May
24 Jul
3-4 wk
5 Jun
14 Aug
0 wk
1 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
7 – 21 Jul
4-6 wk
18 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
11 – 25 Apr
6-8 wk
6 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
9 – 23 May
28 May
2-4 wk
6 Jun
11 Jun
0 wk
26 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 May
24 Jun
3-4 wk
5 Jun
15 Jul
0 wk
9 Jun
5 Jul
1 wk after

Herbs

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