Create your calendar
Method
Rel. frost
Last spring frost (0°C) 23 May Frost 3 of 4 years · 20 years of data
Frost-free season 100 days 23 May – 31 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)
4 – 18 Apr
11 Jun
5-7 wk
23 May
16 Jul
0 wk
24 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
11 – 25 Apr
23 Jun
4-6 wk
23 May
21 Jul
0 wk
24 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
6 Mar – 3 Apr
8-12 wk
29 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Apr
6 Jun
5-7 wk
23 May
11 Jul
0 wk
23 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
1 – 8 May
23 May
3-4 wk
29 May
13 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
1 – 8 May
20 May
4-5 wk
5 Jun
17 Jun
2 wk after
17 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 Jun
3-4 wk
1 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
28 Feb – 28 Mar
16 Mar
8-12 wk
23 May
0 wk
23 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
20 May
24 May
0 wk
20 May
0 wk
Maize
Zea mays
Greenhouse
25 Apr – 2 May
13 May
3-4 wk
23 May
3 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
27 Apr – 4 May
16 Jun
3-4 wk
25 May
7 Jul
0 wk
5 Jun
27 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
23 May
29 Jun
0 wk
23 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Apr
6 Jun
5-7 wk
23 May
11 Jul
0 wk
23 May
1 Jul
0 wk
Potato
Solanum tuberosum
Fleece
12 – 26 Apr
29 Apr
4-6 wk
24 May
27 May
0 wk
24 May
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Apr
14 Jun
5-7 wk
23 May
19 Jul
0 wk
24 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
8 – 15 May
28 May
3-4 wk
5 Jun
18 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
25 Apr – 2 May
13 May
3-4 wk
23 May
3 Jun
0 wk
29 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
11 – 25 Apr
18 Jun
4-6 wk
23 May
16 Jul
0 wk
Lettuce
Lactuca sativa
25 Apr – 2 May
3 Jul
3-4 wk
23 May
24 Jul
0 wk
24 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
11 – 25 Apr
18 Jun
4-6 wk
23 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Apr – 9 May
4 May
2-4 wk
23 May
0 wk
23 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
20 May
24 May
0 wk
20 May
0 wk
Spinach
Spinacia oleracea
25 Apr – 2 May
20 Jul
3-4 wk
23 May
10 Aug
0 wk
20 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
17 Jun – 1 Jul
4-6 wk
29 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
28 Mar – 11 Apr
22 Apr
6-8 wk
23 May
3 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
1 – 15 May
30 May
2-4 wk
29 May
13 Jun
1 wk after
17 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
11 – 25 Apr
18 Jun
4-6 wk
23 May
16 Jul
0 wk
Garden pea
Pisum sativum
25 Apr – 2 May
18 Jun
3-4 wk
23 May
9 Jul
0 wk
24 May
29 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
Greenhouse
17 Apr – 1 May
21 May
4-6 wk
29 May
18 Jun
1 wk after
Lemon balm
Melissa officinalis
14 – 28 Mar
14 May
8-10 wk
23 May
9 Jul
0 wk
17 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
24 May
7 Jul
0 wk
Wild chives
Allium schoenoprasum
28 Mar – 11 Apr
30 May
6-8 wk
23 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Spearmint
Mentha spicata
28 Feb – 28 Mar
16 May
8-12 wk
23 May
11 Jul
0 wk
17 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
23 May
27 Jul
0 wk
5 Jun
17 Jul
2 wk after
Garden sage
Salvia officinalis
16 – 30 Mar
1 May
8-10 wk
25 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
14 – 28 Mar
6 May
8-10 wk
23 May
1 Jul
0 wk
Oregano
Origanum vulgare
28 Mar – 11 Apr
20 May
6-8 wk
23 May
1 Jul
0 wk
17 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
28 Mar – 11 Apr
20 May
6-8 wk
23 May
1 Jul
0 wk
24 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
16 Feb – 16 Mar
19 Mar
10-14 wk
25 May
28 May
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
1 – 8 May
28 May
3-4 wk
29 May
18 Jun
1 wk after
Cornflower
Centaurea cyanus
23 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
20 Mar – 3 Apr
19 Apr
8-10 wk
29 May
14 Jun
1 wk after
Sweet William
Dianthus barbatus
28 Mar – 11 Apr
6-8 wk
23 May
0 wk
2 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
3 – 17 Apr
3 May
6-8 wk
29 May
14 Jun
1 wk after
12 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
8 – 22 Apr
27 Apr
6-8 wk
3 Jun
8 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
10 Apr – 8 May
24 May
4-8 wk
5 Jun
21 Jun
2 wk after
5 Jun
11 Jun
2 wk after
Foxglove
Digitalis purpurea
14 – 28 Mar
8-10 wk
23 May
0 wk
5 Jun
2 wk after
Busy lizzie
Impatiens walleriana
1 – 29 Apr
24 May
8-12 wk
24 Jun
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
3 – 17 Apr
13 May
6-8 wk
29 May
24 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
24 Apr – 8 May
4-6 wk
5 Jun
2 wk after
Chinese lantern
Physalis alkekengi
16 – 30 Mar
2 Apr
8-10 wk
25 May
28 May
0 wk
Love in a mist
Nigella damascena
23 May
24 Jun
0 wk
24 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
3 – 17 Apr
23 Apr
6-8 wk
29 May
4 Jun
1 wk after
12 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
2 – 30 Mar
2 Apr
8-12 wk
25 May
28 May
0 wk
Cardoon
Cynara cardunculus
Season too short
28 Feb – 28 Mar
17 Mar
8-12 wk
23 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
6 Mar – 3 Apr
13 Apr
8-12 wk
29 May
8 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
3 – 17 Apr
27 Apr
6-8 wk
29 May
8 Jun
1 wk after
Corn poppy
Papaver rhoeas
23 May
9 Jul
0 wk
24 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
28 Feb – 28 Mar
4 May
8-12 wk
23 May
29 Jun
0 wk
2 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
27 Mar – 10 Apr
29 Apr
8-10 wk
5 Jun
24 Jun
2 wk after
Sweet pea
Lathyrus odoratus
28 Mar – 18 Apr
27 May
5-8 wk
23 May
1 Jul
0 wk
Stock
Matthiola incana
28 Mar – 11 Apr
28 May
6-8 wk
23 May
9 Jul
0 wk
5 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
28 Mar – 11 Apr
30 Apr
6-8 wk
23 May
11 Jun
0 wk
5 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
17 Apr – 1 May
6 May
4-6 wk
29 May
3 Jun
1 wk after
Garden pansy
Viola × wittrockiana
14 – 28 Mar
16 May
8-10 wk
23 May
11 Jul
0 wk
2 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
6 Mar – 3 Apr
19 Apr
8-12 wk
29 May
14 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
30 Mar – 13 Apr
16 Apr
6-8 wk
25 May
28 May
0 wk
5 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
17 Apr – 1 May
21 May
4-6 wk
29 May
18 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
24 Apr – 8 May
28 May
3-5 wk
29 May
18 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
17 Apr – 1 May
24 May
4-6 wk
29 May
21 Jun
1 wk after
17 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
13 Mar – 10 Apr
13 May
8-12 wk
5 Jun
8 Jul
2 wk after
Bee balm
Monarda didyma
28 Feb – 28 Mar
14 Apr
8-12 wk
23 May
9 Jun
0 wk
17 Jun
4 wk after
Yarrow
Achillea millefolium
28 Mar – 11 Apr
31 Mar
6-8 wk
23 May
0 wk
5 Jun
2 wk after
Safflower
Carthamus tinctorius
23 May
11 Jun
0 wk
24 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
28 Mar – 11 Apr
20 May
6-8 wk
23 May
1 Jul
0 wk
7 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
11 – 25 Apr
1 Jun
4-6 wk
23 May
29 Jun
0 wk
5 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
6 – 20 Mar
23 Mar
10-12 wk
29 May
1 Jun
1 wk after
Sunflower
Helianthus annuus
8 – 15 May
27 May
3-4 wk
5 Jun
17 Jun
2 wk after
17 Jun
4 wk after
China aster
Callistephus chinensis
10 – 24 Apr
16 May
6-8 wk
5 Jun
27 Jun
2 wk after
5 Jul
6 wk after
Annual phlox
Phlox drummondii
3 – 17 Apr
28 Apr
6-8 wk
29 May
9 Jun
1 wk after
5 Jul
6 wk after
Hollyhock
Alcea rosea
28 Mar – 11 Apr
6-8 wk
23 May
0 wk
5 Jun
2 wk after
Alpine delphinium
Delphinium elatum
28 Feb – 28 Mar
14 Apr
8-12 wk
23 May
9 Jun
0 wk
17 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
3 – 17 Apr
13 May
6-8 wk
29 May
24 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
30 Mar – 13 Apr
6 May
6-8 wk
25 May
17 Jun
0 wk
5 Jul
6 wk after
Wood sage
Salvia nemorosa
14 – 28 Mar
4 Apr
8-10 wk
23 May
30 May
0 wk
17 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
20 Mar – 17 Apr
7 May
6-10 wk
29 May
18 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
23 May
5 Jul
0 wk
24 May
25 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
20 Mar – 3 Apr
22 Apr
8-10 wk
29 May
17 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
28 Mar – 11 Apr
30 Apr
6-8 wk
23 May
11 Jun
0 wk
5 Jun
2 wk after