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Method
Rel. frost
Last spring frost (0°C) 5 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 68 days 5 Jun – 12 Aug
Probability that frost is over

25% = 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
19 Mar – 16 Apr
8-12 wk
11 Jun
1 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
14 – 21 May
3-4 wk
11 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 May
19 May
4-5 wk
18 Jun
2 wk after
10 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
13 Mar – 10 Apr
23 Mar
8-12 wk
5 Jun
0 wk
5 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
1 wk after
9 Jun
1 wk after
Maize
Zea mays
Season too short
8 – 15 May
3-4 wk
5 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
15 Jun
3-4 wk
7 Jun
6 Jul
0 wk
26 Jun
26 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
30 Jun
0 wk
5 Jun
20 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
4-6 wk
21 Jun
2 wk after
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
15 Jun
5-7 wk
5 Jun
20 Jul
0 wk
9 Jun
10 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
14 – 21 May
14 Jun
3-4 wk
11 Jun
5 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
8 – 15 May
18 May
3-4 wk
5 Jun
8 Jun
0 wk
15 Jun
1 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
4 Jul
3-4 wk
5 Jun
25 Jul
0 wk
9 Jun
15 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
13 May
2-4 wk
5 Jun
0 wk
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 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
10 – 24 Apr
6-8 wk
5 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
8 – 22 May
16 Jun
2-4 wk
5 Jun
30 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
19 Jun
3-4 wk
5 Jun
10 Jul
0 wk
9 Jun
30 Jun
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
30 Apr – 14 May
23 May
4-6 wk
11 Jun
20 Jun
1 wk after
Lemon balm
Melissa officinalis
27 Mar – 10 Apr
15 May
8-10 wk
5 Jun
10 Jul
0 wk
10 Jul
5 wk after
Dill
Anethum graveolens
9 Jun
6 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
26 Jul
0 wk
26 Jun
16 Jul
3 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
5 May
8-10 wk
7 Jun
30 Jun
0 wk
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
Fleece
27 Feb – 27 Mar
25 Mar
10-14 wk
5 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
Greenhouse
14 – 21 May
30 May
3-4 wk
11 Jun
20 Jun
1 wk after
Cornflower
Centaurea cyanus
5 Jun
15 Jul
0 wk
9 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
2 – 16 Apr
17 Apr
8-10 wk
11 Jun
12 Jun
1 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
16 – 30 Apr
1 May
6-8 wk
11 Jun
12 Jun
1 wk after
3 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
21 Apr – 5 May
29 Apr
6-8 wk
16 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
1 – 29 May
21 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
26 Mar – 23 Apr
10 Jun
8-12 wk
18 Jun
5 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
16 – 30 Apr
11 May
6-8 wk
11 Jun
22 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
27 Mar – 10 Apr
15 Apr
8-10 wk
5 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
5 Jun
25 Jun
0 wk
9 Jun
15 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
16 – 30 Apr
21 Apr
6-8 wk
11 Jun
1 wk after
3 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
Fleece
13 Mar – 10 Apr
15 Apr
8-12 wk
5 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
13 Mar – 10 Apr
21 Mar
8-12 wk
5 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
19 Mar – 16 Apr
15 Apr
8-12 wk
11 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
16 – 30 Apr
29 Apr
6-8 wk
11 Jun
1 wk after
Corn poppy
Papaver rhoeas
5 Jun
10 Jul
0 wk
9 Jun
30 Jun
1 wk after
Snapdragon
Antirrhinum majus
13 Mar – 10 Apr
5 May
8-12 wk
5 Jun
30 Jun
0 wk
21 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
9 – 23 Apr
27 Apr
8-10 wk
18 Jun
22 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
29 May
6-8 wk
5 Jun
10 Jul
0 wk
26 Jun
30 Jun
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
Greenhouse
30 Apr – 14 May
8 May
4-6 wk
11 Jun
1 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
19 Mar – 16 Apr
17 Apr
8-12 wk
11 Jun
12 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
Fleece
10 – 24 Apr
29 Apr
6-8 wk
5 Jun
10 Jun
0 wk
10 Jul
5 wk after
Common zinnia
Zinnia elegans
Fleece
30 Apr – 14 May
23 May
4-6 wk
11 Jun
20 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
7 – 21 May
30 May
3-5 wk
11 Jun
20 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
30 Apr – 14 May
21 May
4-6 wk
11 Jun
18 Jun
1 wk after
10 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Mar – 23 Apr
15 May
8-12 wk
18 Jun
10 Jul
2 wk after
Bee balm
Monarda didyma
13 Mar – 10 Apr
15 Apr
8-12 wk
5 Jun
10 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
2 Jun
4-6 wk
5 Jun
30 Jun
0 wk
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
19 Mar – 2 Apr
20 Mar
10-12 wk
11 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
14 – 21 May
2 Jun
3-4 wk
11 Jun
23 Jun
1 wk after
26 Jun
3 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
9 May
6-8 wk
18 Jun
20 Jun
2 wk after
24 Jul
7 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
25 Apr
6-8 wk
11 Jun
1 wk after
24 Jul
7 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
15 Apr
8-12 wk
5 Jun
10 Jun
0 wk
10 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
16 – 30 Apr
11 May
6-8 wk
11 Jun
22 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
29 Apr
6-8 wk
7 Jun
10 Jun
0 wk
24 Jul
7 wk after
Wood sage
Salvia nemorosa
27 Mar – 10 Apr
5 Apr
8-10 wk
5 Jun
0 wk
10 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
2 – 30 Apr
9 May
6-10 wk
11 Jun
20 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
5 Jun
3 Jul
0 wk
9 Jun
23 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
2 – 16 Apr
21 Apr
8-10 wk
11 Jun
16 Jun
1 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