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-2.1°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 28 May Frost 1 of 10 years · 20 years of data
Frost-free season 106 days 28 May – 11 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)
9 – 23 Apr
11 Jun
5-7 wk
28 May
16 Jul
0 wk
29 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Apr
23 Jun
4-6 wk
28 May
21 Jul
0 wk
29 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Apr
6 Jun
5-7 wk
28 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
11 – 18 May
3-4 wk
8 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
27 May
4-5 wk
1 Jul
5 wk after
10 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Mar – 2 Apr
24 Mar
8-12 wk
28 May
0 wk
10 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
29 May
8 Jun
0 wk
29 May
29 May
0 wk
Maize
Zea mays
Greenhouse
4 – 11 May
3-4 wk
1 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
30 Jun
3-4 wk
3 Jun
21 Jul
1 wk after
10 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 May
1 Jul
0 wk
28 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Apr
6 Jun
5-7 wk
28 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Potato
Solanum tuberosum
26 Apr – 10 May
22 May
4-6 wk
7 Jun
19 Jun
1 wk after
7 Jun
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Apr
16 Jun
5-7 wk
28 May
21 Jul
0 wk
29 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
20 – 27 May
3-4 wk
17 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
6 Jun
3-4 wk
3 Jun
27 Jun
1 wk after
10 Jun
17 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Apr
18 Jun
4-6 wk
28 May
16 Jul
0 wk
Lettuce
Lactuca sativa
30 Apr – 7 May
5 Jul
3-4 wk
28 May
26 Jul
0 wk
29 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Apr
18 Jun
4-6 wk
28 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Apr – 14 May
28 May
2-4 wk
28 May
11 Jun
0 wk
28 May
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
29 May
8 Jun
0 wk
29 May
29 May
0 wk
Spinach
Spinacia oleracea
30 Apr – 7 May
20 Jul
3-4 wk
28 May
10 Aug
0 wk
25 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
6 – 20 Apr
6-8 wk
1 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
11 – 25 May
12 May
2-4 wk
8 Jun
2 wk after
22 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Apr
18 Jun
4-6 wk
28 May
16 Jul
0 wk
Garden pea
Pisum sativum
30 Apr – 7 May
20 Jun
3-4 wk
28 May
11 Jul
0 wk
29 May
1 Jul
0 wk

Herbs

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