Valley grow notes · Phoenix, AZ
It’s hot. You only get one shot a year. Pick a pack that can finish in the Valley — not one written for Amsterdam.
Arizona lets adults grow a small number of plants at home. Cities can add extra rules. Read the law, then shop. We sell seeds. We are not your lawyer.
What the year feels like here
If you want to start new seeds for outside, keep in mind they will need to be close to the desired height before placing outdoors. During these months there is not enough daylight for photoperiods to continue vegging and will transition straight into flower, meaning they will not grow much bigger and start to flower right away. Be sure to throw them outside no later than 2nd week of March or you will be too late for a 8-9 week strain!
If you already started new seeds indoors, then you can move them outside no sooner than May 20th or they will start to flower immediately.
Monsoon season can wreak havoc on your plants. Rain and humidity can rot thick dense buds. Make sure to place a shade cloth of 50-60% over your plants to keep the valley sun from scorching the plants & the rain from destroying them.
Outdoor photoperiods will finish and can be harvested. Then Phoenix starts to cool down some and would be a good time for an Autoflower.
Most people grow indoors
An Indoor grow can be in a closet or grow tent. This is the 1st choice by many living in the Valley of the Sun.
First grow? Pick a strain that flowers in about 7–9 weeks and stays short.
Good first tent packs
If you grow outside
Start seeds in cups indoors. Move them outside only after nights stay warm. Cold nights plus hot days can kill a seedling if you rush it.
Look for “short summers” on the pack, and a finish around September. Long plants like Amnesia, Sour Diesel, and Mexican Rush need a greenhouse or they’ll still be flowering in the rain. Rain rots thick buds.
Safer outside
The easy kind of seed
A regular plant needs you to switch the light timer (usually 18 hours on, then 12 hours on to make it flower). An autoflower — including these F1 packs — starts flowering by itself. Put the seed in the pot it will finish in. Don’t sit it on a hot windowsill in July.
Epsilon F1 doesn’t smell much until the end. Good if you don’t want the hallway to know.
Apollo and Milky Way stay short. Skip Hyperion if your light is already close to the ceiling.
Hyperion and Cosmos get tall. They need a real tent, not a shelf in a closet.
Neighbors, HOAs, hallways
Tangie, Sour Diesel, Dynamite Diesel, Legendary OG Punch. Get a carbon smell filter with your light. Apartment hallways here are short. People will notice.
Epsilon F1 doesn’t smell much until harvest. ICE is louder after you dry it than while it grows. If you share a vent, start with one of these.
Phoenix tap water is too hard. You will need to use RO (Reverse Osmosis) or bottled drinking water for best results.
Depending on the soil or grow medium, a pot can go from wet to dry in a day. Pick it up first. Don’t water on a schedule you guessed.
Too much water rots roots. Overwatering is the #1 problem most growers won’t admit.
Valley water is often too alkaline and often too high in PPM/TDS.
If you don’t know where to start
Granddaddy Purple · Lemon Skunk · Mimosa · Shogun · Special Queen 1 · Watermelon · White Widow
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