City guide · Medicine Hat, AB
Mowing in Medicine Hat's Dry, Sunny Summers: How High, How Often and When to Wait
To mow a lawn in Medicine Hat's heat, keep it tall. The City says the ideal height is 5 to 7.5 cm (2 to 3 inches). Never cut more than a third of the blade at once. Mow when the grass is dry, late in the day, with a sharp blade. Leave the clippings on the lawn. And when a dry spell stops the grass from growing, skip the cut. The City's own tip sheet says never mow during a drought.
Why is mowing in Medicine Hat different?
Medicine Hat sits in what Alberta calls the Dry Mixedgrass subregion. A provincial report says it has the warmest summers and the least rain of any part of Alberta. It also has the longest growing season. So your grass grows for a long time, but it gets very little water to do it.
That same report names the cause of mid-summer stress. Drying winds, low summer rain, high heat and strong sun all pull water out of the ground. Here's what Environment Canada's climate normals show at the Medicine Hat airport:
| Medicine Hat (airport) | Average |
|---|---|
| Rain and snow a year | About 323 mm |
| Wettest month | June, about 65 mm |
| July high | 27.5°C |
| Days with some sunshine | About 330 a year |
| Hours of bright sunshine | About 2,544 a year |
| Last spring frost | Around May 13 |
| First fall frost | Around September 25 |
Look at June. It's the wettest month. After that, rain drops off just as the heat peaks. That's why many lawns here look great in June and tired by August.
How high should I mow my lawn in Medicine Hat?
Keep it between 5 and 7.5 cm (2 and 3 inches). The City's grasscycling sheet calls that the ideal height. Its water conservation page says the same thing in inches: set your mower blades between 2 and 3 inches.
In the hottest weeks, use the top of that range. The City says to leave your lawn long to slow water loss. Tall grass shades the soil. Short grass lets the sun bake it.
The City also names two common mistakes: cutting too short and not cutting often enough. Both hurt more in a dry summer.
Not sure what your mower is set to? Most have a lever or dial by each wheel. Set them all to the same notch. Then mow a strip and check it with a ruler. Many people find their "high" notch is lower than they thought.
How much grass can I cut off at once?
No more than one third of the blade. That rule is right on the City's sheet.
Here's how to use it. Say you want the lawn at 6 cm (about 2.5 inches). Mow when it reaches about 9 cm (3.5 inches). You take off 3 cm, which is one third.
Got behind after a trip or a rainy week? Don't scalp it in one go. The City says to cut long grass down in short amounts over several mowings. It suggests two to three mowings to get back to the right height. If you cut too much at once, thick clumps of clippings can smother the lawn underneath.
Should I mow when it's hot and dry?
Not in a drought. The City's sheet says it plainly: never mow during a drought. When the ground is dry and the grass has stopped growing, a mower only stresses it more.
So mow by growth, not by the calendar. If the lawn hasn't grown since last week, skip the cut. If a few weeds or green patches shoot up, trim those and leave the rest. Our guide to how often to mow explains how to space cuts out.
On days you do mow, follow two simple City tips:
- Mow when the grass is dry. Wet grass clumps and tears.
- Mow late in the day. The City says that gives clippings time to dry and settle overnight. It's also cooler for you and the lawn.
- Use a sharp blade. The City says any mower works, as long as the blade is sharp. A dull blade shreds the tips. Our post on sharp mower blades shows what to look for.
Should I bag the clippings or leave them?
Leave them. The City says to leave grass cuttings on the lawn to slow water loss and feed the grass. It calls this grasscycling. It also says clippings break down and disappear within a day or two.
That only works if you mow often and keep cuts small. Short clippings drop down between the blades. Long ones sit on top in clumps. Our post on leaving grass clippings explains why it helps.
If you do need to bag, use your green cart. Grass clippings and leaves go in loose, not in plastic bags. Roll the cart out before 7 a.m. on your garbage day. The 2026 organics season runs from April 6 to November 20.
Are there watering rules in Medicine Hat right now?
No. On October 1, 2026, the City's water page shows normal conditions. No water shortage phase is in effect.
That can change in a dry year. The City watches river levels and drought with Alberta Environment and Protected Areas. It also reminds people that a river through town doesn't mean endless water. Hot, dry weather can still bring a shortage. The last phase ran from August 28, 2023, to October 22, 2024.
The City's plan has four phases:
- Phase 1 (voluntary): water lawns 60 minutes a day, three days a week. Even addresses use Tuesday, Thursday and Saturday. Odd addresses use Wednesday, Friday and Sunday.
- Phase 2 (mandatory): the same days, 45 minutes a day.
- Phase 3: a hand-held sprayer only, 30 minutes a day, two days a week.
- Phase 4: no water use for anything non-essential.
In normal times, the City's sheet suggests one inch (2.5 cm) of water every five to six days, early in the morning. Water early or late in the day so less is lost to the sun.
Can I just let the grass grow long to save water?
Taller is good. Shaggy is not. Medicine Hat's Unsightly Property Bylaw No. 3117 lists uncut grass or weeds as one sign of an unsightly property. It doesn't set a height in centimetres. An officer looks at the whole yard.
If an officer decides your yard is unsightly, they can send a written Direction to clean it up. If an Order follows, the City can do the work and charge you the cost. That's on top of any fine.
Don't forget the boulevard. The City owns it, but you keep it tidy. Its landscaping page says to keep boulevard grass and shrubs trimmed. Just leave the boulevard trees alone. Tree Preservation Bylaw #4218 says you must not prune any public tree. A neat trim and edge along the sidewalk does most of the work.
How long will I keep mowing this fall?
Keep mowing while the grass grows. The first fall frost comes around September 25 on average. In 9 years out of 10, it's come by October 5. Growth slows as nights get colder, so the gap between cuts gets longer.
Keep the mower at the same height for the last few cuts. Then see our post on the last mow of the season to know when to stop. Down the road in Lethbridge, winter wind is the bigger worry. Our Lethbridge Chinook guide covers that, and much of it fits here too.
Who can mow my Medicine Hat lawn the right way?
Golden Oak Lawn Care matches you with a vetted, insured local crew in Medicine Hat. They do the work. We stand behind it with the Golden Oak Guarantee.
Ask for lawn mowing at a high setting with the clippings left on. With the Worry-Free Lawn Season, the same crew comes every visit and texts you a photo after every cut. Watering stays with you. See all our Alberta cities.
Want it handled? Get your price in 60 minutes, or call 1-866-904-LAWN.
Medicine Hat Summer Mowing Questions
What height should I cut my grass in Medicine Hat?
The City says 5 to 7.5 cm (2 to 3 inches) is ideal. Use the high end in hot, dry weeks. Tall grass shades the soil and slows water loss.
Should I mow my lawn during a drought?
No. The City's grasscycling sheet says never mow during a drought. If the grass isn't growing, skip the cut. Mow again once it grows.
Is there a watering ban in Medicine Hat now?
Not on October 1, 2026. The City's water page shows normal conditions. Check that page before you water, since a phase can start in a dry spell.
How long can my grass get before the City steps in?
Bylaw 3117 sets no height. It lists uncut grass or weeds as one sign of an unsightly yard. An officer can send a written Direction, and after an Order the City can do the work and bill you.
Rules change, so check with the City before you plan. Sources: Medicine Hat water conservation, City grasscycling sheet, Phase 1 ends (2024), Unsightly Property Bylaw 3117, City landscaping page, City yard waste, 2026 waste calendar, Natural Regions of Alberta, Dry Mixedgrass guide, Canadian climate normals.
