Cannabis doesn't last forever, but stored right it'll stay good for six months to a year. Stored wrong, it can turn harsh and stale in a couple of weeks.

Four things wear it down. Light, heat, air, and moisture. Keep those four in check and your flower holds onto its smell, its potency, and its smooth smoke a whole lot longer.

The why is quick. Light and heat break down the compounds that give flower its potency and its smell, so a warm sunny spot ages it fast. Air dries it out and slowly oxidizes it. Moisture is the one to watch most, because too much of it is what invites mold. Get that balance right and the rest takes care of itself.

The setup that actually works

You want an airtight glass jar. A mason jar or the classic dispensary jar both do the job. Glass doesn't hold static or old odors, and a tight lid keeps oxygen out, which is half the battle.

Then put that jar somewhere cool, dark, and dry. A drawer, a cabinet, a closet shelf. Away from the window, away from the stove, away from anything that runs warm like a cable box or a lamp.

If you want to get a little fancy, drop a two-way humidity pack into the jar. It holds the flower right around 58 to 62 percent humidity, so it won't dry to dust or turn damp. Not required, but it's a cheap upgrade if you tend to keep flower around for a few weeks or more.

Hang onto the original label or the batch info, too. Knowing the pack date tells you roughly how much shelf life you're working with, which beats guessing months down the line.

A clear jar is fine, for what it's worth, as long as it lives somewhere dark. It's the light hitting the flower that does the damage, not the glass around it. An opaque or tinted jar just saves you from having to think about it.

That's the whole system. Sealed glass, cool and dark. Handle that and you've beaten most of what kills good flower.

Not complicated. Just consistent.

One habit beats every storage trick, though. Buy what you'll actually smoke. If you go slow, smaller amounts bought more often stay fresher than one big jar you nurse for months.

What not to do

A few common habits quietly ruin nice flower.

• Long-term plastic baggies. Fine for a day or two, bad for weeks. Plastic builds up static that pulls the trichomes, the frosty little crystals where most of the potency and flavor live, right off the bud.
• The fridge or freezer. It feels like the smart move. It isn't. Temperature swings invite moisture, which is exactly how mold gets started, and freezing makes those trichomes brittle enough to snap off at a touch.
• Leaving it in the light. A sunny windowsill will dry out and fade flower faster than almost anything else. UV light breaks down the good stuff over time.

How to tell it's gone bad

Flower past its prime usually tells on itself. Trust your senses here.

The smell goes first. Fresh flower is fragrant and alive. Old flower smells flat, harsh, or a little like dry hay. The texture shifts too. It gets crumbly and bone-dry, crumbling to dust instead of breaking apart with a bit of give.

Then there's mold, and this one isn't up for debate. If you spot fuzzy white or gray patches, or it smells musty like a damp basement, toss it. Do not smoke moldy flower. Not worth the risk.

Short of mold, old flower is more disappointing than dangerous. It smokes harsh, scratches at the throat, and most of the flavor is long gone. It'll still do something. It just won't be the flower you paid for.

Edibles and concentrates play by different rules

The flower rules don't fully carry over to everything else.

Edibles follow food logic. Check the date on the package and store them like the snack they are. Gummies and chocolates keep fine somewhere cool and dry, and the fridge is actually okay for them, unlike with flower.

Heat is the real enemy for edibles. A chocolate bar left in a hot car is a lost cause, so keep them out of direct sun and away from anything that runs warm.

Concentrates like cool and dark, same as flower, but many hold up best in the fridge in a sealed, airtight container. When you're not sure, follow the label. The maker knows their own product better than a rule of thumb does.

Store any of it properly and you'll get the full life out of it, with fresh flower giving you a solid six months to a year of good smoking. Browse the menu to restock when you're running low, or ask a budtender for a jar recommendation next time you're in. If you want to know what you're stocking up on, our strain guides lay out every flower on the shelf. We'd rather yours stay great.