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0.2°
Near frost tonight at 05:00. Bring in or cover sensitive plants
-4.0°
Last 24h: Moderate frost recorded tonight at 05:00. Inspect for frost damage
No frost in sight Last frost normally in 2 days (8 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 8 May Normal year · 20 years of data
Frost-free season 150 days 8 May – 5 Oct

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
20 Mar – 3 Apr
17 Jun
5-7 wk
8 May
22 Jul
0 wk
1 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
27 Mar – 10 Apr
29 Jun
4-6 wk
8 May
27 Jul
0 wk
1 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
4 Mar – 1 Apr
2 Apr
8-12 wk
27 May
28 May
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Mar – 3 Apr
12 Jun
5-7 wk
8 May
17 Jul
0 wk
26 Apr
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
16 – 23 May
27 May
3-4 wk
13 Jun
17 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
9 – 16 May
8 Jun
4-5 wk
13 Jun
6 Jul
5 wk after
13 Jun
26 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
23 – 30 May
26 May
3-4 wk
20 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Feb – 13 Mar
2 Apr
8-12 wk
8 May
28 May
0 wk
18 May
18 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
1 May
17 Jun
1 wk before
1 May
7 Jun
1 wk before
Maize
Zea mays
29 Apr – 6 May
17 May
3-4 wk
27 May
7 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 Apr
6 Jul
3-4 wk
14 May
27 Jul
1 wk after
18 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
7 Jul
0 wk
26 Apr
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Mar – 3 Apr
12 Jun
5-7 wk
8 May
17 Jul
0 wk
26 Apr
7 Jul
2 wk before
Potato
Solanum tuberosum
1 – 15 Apr
2 Jun
4-6 wk
13 May
30 Jun
1 wk after
13 May
20 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Mar – 3 Apr
22 Jun
5-7 wk
8 May
27 Jul
0 wk
1 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
16 – 23 May
19 Jun
3-4 wk
13 Jun
10 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 Apr
14 Jun
3-4 wk
14 May
5 Jul
1 wk after
18 May
25 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Mar – 10 Apr
24 Jun
4-6 wk
8 May
22 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Apr
11 Jul
3-4 wk
8 May
1 Aug
0 wk
1 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Mar – 10 Apr
24 Jun
4-6 wk
8 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Mar – 12 Apr
3 Jun
2-4 wk
26 Apr
17 Jun
2 wk before
26 Apr
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
1 May
17 Jun
1 wk before
1 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
10 – 17 Apr
26 Jul
3-4 wk
8 May
16 Aug
0 wk
20 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jun
4-6 wk
16 Jul
10 wk after
Garden tomato
Solanum lycopersicum
1 – 15 Apr
26 Apr
6-8 wk
27 May
7 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
29 Apr – 13 May
21 Jun
2-4 wk
27 May
5 Jul
3 wk after
13 Jun
25 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Mar – 10 Apr
24 Jun
4-6 wk
8 May
22 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Apr
26 Jun
3-4 wk
8 May
17 Jul
0 wk
1 May
7 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
2 – 16 May
28 May
4-6 wk
13 Jun
25 Jun
5 wk after
Lemon balm
Melissa officinalis
27 Feb – 13 Mar
22 May
8-10 wk
8 May
17 Jul
0 wk
29 May
7 Jul
3 wk after
Dill
Anethum graveolens
1 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
13 – 27 Mar
5 Jun
6-8 wk
8 May
17 Jul
0 wk
1 May
7 Jul
1 wk before
Spearmint
Mentha spicata
13 Feb – 13 Mar
22 May
8-12 wk
8 May
17 Jul
0 wk
29 May
7 Jul
3 wk after
Coriander
Coriandrum sativum
8 May
16 Aug
0 wk
18 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
5 – 19 Mar
7 May
8-10 wk
14 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
27 Feb – 13 Mar
12 May
8-10 wk
8 May
7 Jul
0 wk
Oregano
Origanum vulgare
13 – 27 Mar
26 May
6-8 wk
8 May
7 Jul
0 wk
29 May
27 Jun
3 wk after
Parsley
Petroselinum crispum
13 – 27 Mar
26 May
6-8 wk
8 May
7 Jul
0 wk
1 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
5 Feb – 5 Mar
8 Apr
10-14 wk
14 May
17 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
16 – 23 May
4 Jun
3-4 wk
13 Jun
25 Jun
5 wk after
Cornflower
Centaurea cyanus
8 May
17 Jul
0 wk
1 May
7 Jul
1 wk before
Statice
Limonium sinuatum
18 Mar – 1 Apr
5 May
8-10 wk
27 May
30 Jun
3 wk after
Sweet William
Dianthus barbatus
13 – 27 Mar
6-8 wk
8 May
0 wk
13 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
1 – 15 Apr
19 May
6-8 wk
27 May
30 Jun
3 wk after
16 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
27 Mar – 10 Apr
22 May
6-8 wk
22 May
3 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 Apr – 1 May
5 Jun
4-8 wk
29 May
3 Jul
3 wk after
29 May
23 Jun
3 wk after
Foxglove
Digitalis purpurea
27 Feb – 13 Mar
8-10 wk
8 May
0 wk
18 May
1 wk after
Busy lizzie
Impatiens walleriana
21 Mar – 18 Apr
26 Jun
8-12 wk
13 Jun
21 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
15 – 29 Apr
9 May
4-6 wk
27 May
6 Jun
3 wk after
Chinese lantern
Physalis alkekengi
5 – 19 Mar
22 Apr
8-10 wk
14 May
17 Jun
1 wk after
Love in a mist
Nigella damascena
8 May
2 Jul
0 wk
1 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
1 – 15 Apr
9 May
6-8 wk
27 May
20 Jun
3 wk after
16 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
19 Feb – 19 Mar
22 Apr
8-12 wk
14 May
17 Jun
1 wk after
Cardoon
Cynara cardunculus
4 Mar – 1 Apr
23 Mar
8-12 wk
27 May
3 wk after
Regal-foxtail
Ptilotus nobilis
21 Mar – 18 Apr
20 Apr
8-12 wk
13 Jun
15 Jun
5 wk after
Globe amaranth
Gomphrena globosa
18 Apr – 2 May
4 May
6-8 wk
13 Jun
15 Jun
5 wk after
Corn poppy
Papaver rhoeas
8 May
17 Jul
0 wk
1 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
13 Feb – 13 Mar
12 May
8-12 wk
8 May
7 Jul
0 wk
13 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
4 – 18 Apr
15 May
8-10 wk
13 Jun
10 Jul
5 wk after
Sweet pea
Lathyrus odoratus
13 Mar – 3 Apr
2 Jun
5-8 wk
8 May
7 Jul
0 wk
Stock
Matthiola incana
13 – 27 Mar
5 Jun
6-8 wk
8 May
17 Jul
0 wk
18 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
13 – 27 Mar
6 May
6-8 wk
8 May
17 Jun
0 wk
18 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
2 – 16 May
13 May
4-6 wk
13 Jun
5 wk after
Garden pansy
Viola × wittrockiana
27 Feb – 13 Mar
22 May
8-10 wk
8 May
17 Jul
0 wk
13 May
7 Jul
1 wk after
Petunia
Petunia
4 Mar – 1 Apr
5 May
8-12 wk
27 May
30 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
19 Mar – 2 Apr
6 May
6-8 wk
14 May
17 Jun
1 wk after
13 Jun
5 wk after
Common zinnia
Zinnia elegans
15 – 29 Apr
8 Jun
4-6 wk
27 May
6 Jul
3 wk after
Common morning glory
Ipomoea purpurea
9 – 23 May
4 Jun
3-5 wk
13 Jun
25 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 Apr
5 Jun
4-6 wk
27 May
3 Jul
3 wk after
13 Jun
23 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
2 – 30 Apr
20 May
8-12 wk
25 Jun
15 Jul
7 wk after
Bee balm
Monarda didyma
13 Feb – 13 Mar
22 Apr
8-12 wk
8 May
17 Jun
0 wk
29 May
7 Jun
3 wk after
Yarrow
Achillea millefolium
13 – 27 Mar
6 Apr
6-8 wk
8 May
18 May
0 wk
18 May
1 wk after
Safflower
Carthamus tinctorius
8 May
17 Jun
0 wk
1 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
13 – 27 Mar
26 May
6-8 wk
8 May
7 Jul
0 wk
30 Mar
27 Jun
6 wk before
Bishop's flower
Ammi majus
27 Mar – 10 Apr
9 Jun
4-6 wk
8 May
7 Jul
0 wk
18 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
21 Mar – 4 Apr
28 Mar
10-12 wk
13 Jun
5 wk after
Sunflower
Helianthus annuus
29 Apr – 6 May
16 Jun
3-4 wk
27 May
7 Jul
3 wk after
29 May
27 Jun
3 wk after
China aster
Callistephus chinensis
1 – 15 Apr
5 Jun
6-8 wk
27 May
17 Jul
3 wk after
13 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
24 Mar – 7 Apr
29 May
6-8 wk
19 May
10 Jul
2 wk after
13 Jun
30 Jun
5 wk after
Hollyhock
Alcea rosea
13 – 27 Mar
6-8 wk
8 May
0 wk
18 May
1 wk after
Alpine delphinium
Delphinium elatum
13 Feb – 13 Mar
22 Apr
8-12 wk
8 May
17 Jun
0 wk
29 May
7 Jun
3 wk after
African marigold
Tagetes erecta
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
19 Mar – 2 Apr
26 May
6-8 wk
14 May
7 Jul
1 wk after
13 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
27 Feb – 13 Mar
12 Apr
8-10 wk
8 May
7 Jun
0 wk
29 May
3 wk after
Black-eyed susan vine
Thunbergia alata
4 Apr – 2 May
14 May
6-10 wk
13 Jun
25 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
8 May
17 Jul
0 wk
1 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
18 Mar – 1 Apr
11 May
8-10 wk
27 May
6 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Mar
6 May
6-8 wk
8 May
17 Jun
0 wk
18 May
7 Jun
1 wk after