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No frost in sight Last frost normally in 9 days (18 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 18 May Frost 9 of 10 years · 20 years of data
Frost-free season 106 days 18 May – 1 Sep
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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