EX17, Mid Devon

EX17, Mid Devon50.8121, -3.7055from your postcode

Mowing

When you can next cut it, and the best slot this weekend.

Best weekend slot

Nothing doing

Verdict: Not worth it

0.1mm of rain falling.

Thursday afternoon is your first decent window.

Next mow

Thursday 1pm–5pm

Verdict: Prime time

grass dry — rain earlier that day

  • Worth watching: Ground still soft. 34mm rain over the last week, medium (loam) soil. A mower will mark it, and a ride-on will rut it. More

The next 10 days

Each row is a day, morning on the left. The more solid a block, the more of the forecast runs agree you can mow. Open a day for the hour-by-hour forecast behind it.

  1. Monday 19 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.09).
    Monday 19 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready goneAlready gonenothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance···········—————
    Rainmm···········0.1————
    Grass···········soakedsoakedsoakedsoakedsoaked
    Ground···········firmfirmfirmfirmfirm
    Temp···········12°11°10°10°9°
    Windkm/h···········201510108
    Daylight···········✓✓✓——

    Growth: barely growing (growth potential 0.09). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Monday 19 OctoberConfident

    Nothing to cut — the grass is barely growing (growth potential 0.09).

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  2. Tuesday 20 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.09).
    Tuesday 20 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance————————————————
    Rainmm0.60.50.40.30.20.10.1—————————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp7°7°7°7°8°8°9°10°10°11°12°13°12°9°8°9°
    Windkm/h766910121314141514117987
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.09). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Tuesday 20 OctoberConfident

    Nothing to cut — the grass is barely growing (growth potential 0.09).

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  3. Wednesday 21 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.10). Conditions themselves are fine.
    Wednesday 21 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance————————————————
    Rainmm——0.70.62.31.30.40.40.1—0.10.1———0.1
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetdampdampdampwet
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirm
    Temp10°9°8°8°8°8°9°10°10°10°10°10°10°9°8°8°
    Windkm/h36354030383642463842383427201513
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.10). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Wednesday 21 OctoberConfident

    Nothing to cut — the grass is barely growing (growth potential 0.10). Conditions themselves are fine.

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  4. Thursday 22 October: 4 hours worth using. 1pm–5pm — grass dry — rain earlier that day
    Thursday 22 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget itForget itForget itPrime timePrime timePrime timePrime time0.8mm of rain falling0.8mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm————————————0.80.80.83.2
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakeddrydrydrydrysoakedsoakedsoakedsoaked
    Groundfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmfirmbog
    Temp8°8°8°8°9°10°11°12°12°13°13°13°12°11°11°11°
    Windkm/h19181716141211101012141619222528
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.14). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Thursday 22 October · 1pm–5pmConfident

    1pm–5pm — grass dry — rain earlier that day

    Limiting factor:grass wetness

  5. Friday 23 October: nothing to cut. Nothing to cut — the grass is barely growing (growth potential 0.06).
    Friday 23 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growingnothing to cut — the grass is barely growing
    Rainchance————————————————
    Rainmm2.32.32.30.70.70.70.50.50.50.30.30.30.30.30.30.2
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoggysoggysoddensoddensoddenbogbogbogsoddensoddensoddensoddensoddensoddensoddensodden
    Temp9°8°8°8°8°8°8°9°9°9°9°8°8°7°7°7°
    Windkm/h54626663565046444137333028272625
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.06). Not enough to be worth cutting, which is why no hour is recommended today whatever the weather does.

    Friday 23 OctoberReasonably confident

    Nothing to cut — the grass is barely growing (growth potential 0.06).

    Nothing to cut. The odds below describe the weather only — growth decides whether a cut is wanted, and it is judged separately.

    Limiting factor:growth

  6. Saturday 24 October: no hours worth using. No — 0.1mm of rain falling.
    Saturday 24 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    VerdictdarkdarkdarkForget itForget itForget it0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.9mm of rain falling0.9mm of rain falling0.9mm of rain falling2.1mm of rain falling2.1mm of rain fallingdarkdark
    Rainchance————————————————
    Rainmm——————0.10.10.10.90.90.92.12.12.10.5
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoddensoddensoddensoddensoddensoddenbogbogbogbogbogbogbogbogbogbog
    Temp7°7°7°8°8°8°9°9°9°9°9°9°10°11°12°13°
    Windkm/h17151413121212141518212222202022
    Daylight———✓✓✓✓✓✓✓✓✓✓✓——

    Growth: barely growing (growth potential 0.10). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Saturday 24 OctoberReasonably confident

    No — 0.1mm of rain falling.

    Limiting factor:grass wetness

  7. Sunday 25 October: no hours worth using. No — 0.2mm of rain falling.
    Sunday 25 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdark0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain falling0.1mm of rain fallingdarkdarkdark
    Rainchance————————————————
    Rainmm0.10.10.20.20.20.20.20.20.10.10.10.10.10.1——
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetdampdampdamp
    Groundbogbogbogbogbogbogbogbogsoddensoddensoddensoddensoddensoddensoddensodden
    Temp16°16°16°16°15°15°15°14°14°13°13°12°12°11°11°11°
    Windkm/h22232528323740424242403937353433
    Daylight——✓✓✓✓✓✓✓✓✓✓✓———

    Growth: growing slowly (growth potential 0.32). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Sunday 25 OctoberReasonably confident

    No — 0.2mm of rain falling.

    Limiting factor:grass wetness

  8. Monday 26 October: no hours worth using. No — 0.2mm of rain falling.
    Monday 26 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdark0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain falling0.2mm of rain fallingground waterloggedForget itForget itForget itForget itdarkdarkdark
    Rainchance————————————————
    Rainmm0.40.40.20.20.20.20.20.2————————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundbogbogbogbogbogbogbogbogbogsoddensoddensoddensoddensoddensoddensodden
    Temp9°9°10°11°12°13°13°14°14°13°13°12°12°12°12°12°
    Windkm/h1919161112182427251912537911
    Daylight——✓✓✓✓✓✓✓✓✓✓✓———

    Growth: barely growing (growth potential 0.18). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Monday 26 OctoberReasonably confident

    No — 0.2mm of rain falling.

    Limiting factor:grass wetness

  9. Tuesday 27 October: no hours worth using. No — 0.3mm of rain falling.
    Tuesday 27 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdark0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain fallingground waterloggedground waterloggedground waterloggedForget itdarkdarkdarkdark
    Rainchance————————————————
    Rainmm0.80.80.30.30.30.30.30.3————————
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedwetwetwetwetsoaked
    Groundbogbogbogbogbogbogbogbogbogbogbogsoggysoggysoggysoggysoggy
    Temp15°15°15°15°14°14°14°14°14°13°13°13°13°12°12°12°
    Windkm/h17161720242932343433302725232119
    Daylight——✓✓✓✓✓✓✓✓✓✓————

    Growth: growing slowly (growth potential 0.31). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Tuesday 27 OctoberLow confidence this far out

    No — 0.3mm of rain falling.

    Limiting factor:grass wetness

  10. Wednesday 28 October: no hours worth using. No — 0.3mm of rain falling.
    Wednesday 28 October, hour by hour
    5am6am7am8am9am10am11ammidday1pm2pm3pm4pm5pm6pm7pm8pm
    Chance————————————————
    Verdictdarkdark0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain falling0.3mm of rain fallingdarkdarkdarkdark
    Rainchance————————————————
    Rainmm——0.30.30.30.30.30.30.30.30.30.30.30.30.10.1
    Grasssoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoakedsoaked
    Groundsoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggysoggy
    Temp10°10°11°11°12°13°14°14°14°14°14°14°13°13°13°13°
    Windkm/h11121314161719212222232323232323
    Daylight——✓✓✓✓✓✓✓✓✓✓————

    Growth: growing slowly (growth potential 0.22). Enough to be worth cutting. Growth decides whether a cut is wanted, not how well it will go, so it is not one of the rows above and does not move the chances.

    Wednesday 28 OctoberLow confidence this far out

    No — 0.3mm of rain falling.

    Limiting factor:grass wetness

good to go touch and go dark, frost or snow already goneFainter means fewer forecast runs agree.

How you feel about mowing

Sensible middle ground.

Petrol or battery. The baseline.

Growth

How fast it is growing, and when it will need cutting again.

9%Barely growing

Of the fastest this grass could grow. The turf-industry measure, from today's temperature and day length.

The lawn is barely growing, so it does not need cutting. Leave it — taking leaf off a sward that cannot replace it costs more than it gives.

Held back by both temperature and short days — 10.5 hours of daylight at 9°C.

Over the next 10 days
about 6mm of leaf
Next cut due
not within the next ten days

This only knows temperature and day length. Feeding, watering, shade and cutting height all move it, so treat it as a rough guide.

Worked out from the PACE Turf growth potential model and day length —how and why.

Seeding

Soil temperature at germination depth, and when the window opens.

Soil temperature in EX17, Mid Devon

12.2°C54°F

at 6cm — germination depth

Seeding conditions are open — soil is 12.2°C at 6cm and holding above 9°C.

Warming over the next 10 days.

Cross-checks against an independent estimate from air temperature (9.7°C), which agrees to within 0.2°C.

Almost every UK and Irish lawn is a ryegrass and fescue mix, whether it was sown or turfed. We assume that, and use 9°C as the seeding threshold.

Thresholds for every species

The differences are small. Ryegrass is the quickest off the mark; bluegrass is the slowest and wants the warmest soil. Everything else sits between.

Soil temperature at 6cm for reliable germination. Sources onthe method page.
SpeciesSoil neededDays to sprout
Perennial ryegrasslikely yours8°C5–10
Red / chewings fescuelikely yours8–10°C10–14
Tall fescue10–12°C10–14
Browntop bentColonial bentgrass10–12°C14–21
Smooth-stalked meadow grassKentucky bluegrass12–13°C14–28

Feeding

Why timing decides whether a feed does anything at all.

Coming in the app

Grass takes up nitrogen when it is growing. Feed a lawn that has stopped and most of it washes past the roots — which is why timing beats product choice.

Right now this lawn is not growing fast enough to make much use of a feed.

The app will work out the actual feeding windows for your lawn — along with weed control, scarifying and moss treatment — and tell you when they open without you having to check.

Why timing beats product choice

EX17, Mid Devon in detail

Soil temperature in EX17, Mid Devon is currently 12.2°C at 6cm, and rising about 1.9°C over the next 10 days. That depth matters because it is where grass seed sits and where roots start working, and it lags air temperature by days — which is why a warm afternoon here tells you very little on its own.

Lawns in this area are typically perennial ryegrass with fescue, which is what most lawns round here are sown with. That blend needs the soil to hold above 9°C before seed germinates reliably. Seeding conditions are open — soil is 12.2°C at 6cm and holding above 9°C.

1 of the next 10 days look workable. The other 9 are held back by wet grass or soft ground. As for the weekend: nothing doing. 0.1mm of rain falling.

The next recommended window in EX17 opens at 1pm on Thursday 22 October, because that is when the dew has burnt off — earlier than that and you are cutting wet grass. Underfoot, the ground reads as firm after 9mm rain over the last week, medium (loam) soil.

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Single-model forecast here — no ensemble covers this location, so there are no odds to show. Forecast from Open-Meteo, refreshed through the day. Soil temperature is modelled, not measured — how that works and where the thresholds come from.