- Arizona grow guide · Updated November 12, 2026
Marijuana Seeds in Arizona
Adults 21 and over in Arizona can grow up to 6 cannabis plants at their primary residence, with a limit of 12 plants where two or more adults live. Plants must be in a locked, enclosed area that keeps minors out and can’t be seen from public view, and no permit is needed. Timing matters more here than almost anywhere: the low desert’s summer heat and the high country’s short season call for different plans.
- Legal age
- 21+
- Plants per adult
- 6
- Plants per home
- 12 (2 or more adults)
- Permit needed
- No
- Where
- Locked, enclosed, out of public view
- Plant out
- March to June, by elevation
- USDA zones
- 5b–10a
Arizona home-grow rules
What adults 21 and over may grow and keep under the Smart and Safe Arizona Act (Proposition 207, A.R.S. § 36-2852). These limits haven’t changed in 2025 or 2026.
| Who can grow | Adults 21 and over, at their primary residence. |
|---|---|
| Plants per adult | Up to 6. Arizona’s law doesn’t separate mature and immature plants, so every plant counts. |
| Plants per home | No more than 12 at a residence where two or more adults 21+ live. |
| Where plants must be kept | In a closet, room, greenhouse or other enclosed area with a lock or other security device that keeps minors out, and not visible from public view without binoculars, aircraft or other optical aids. |
| Permit or registration | None for adult-use home grow. |
| Your harvest | You may keep and process what your plants produce at the home where they grew; the law sets no weight limit for it. Otherwise adults may possess up to 1 ounce, with no more than 5 grams of concentrate. |
| Home processing | Manual or mechanical methods only, such as sieving or ice-water separation. Butane and other flammable-solvent extraction is reserved for licensed businesses. |
| Gifting | You may give, not sell, up to 1 ounce and up to 6 plants to another adult 21+. |
| Landlords and property owners | May ban or regulate growing on property they own or control. |
| Medical patients | May grow up to 12 plants only if their card authorizes it, which the state grants when they live more than 25 miles from an operating dispensary. |
| Regulator | Arizona Department of Health Services |
Growing cannabis outdoors in Arizona
Arizona has three growing climates: the hot low deserts, the milder mid elevations and the cool high country. Pick your planting date by elevation, not by the calendar.
Plant out
After your last frost: about March in the low desert (Phoenix, Tucson), late April to May at mid elevations (Prescott, Sedona), and early to mid June around Flagstaff.
Flowering
Photoperiod plants start flowering as days shorten after late June. University of Arizona hemp trials found early-spring plantings in southern Arizona can flower too soon because days are still short.
Harvest
Late September to early October in the high country, before Flagstaff’s first freeze around September 28. October at mid elevations. The low deserts usually stay frost-free into December.
What to watch for in Arizona
- Extreme heat. Phoenix averages about 111 days a year at 100°F or more, and University of Arizona trials lost many hemp plants set out between mid-June and mid-September.
- Monsoon storms from June 15 to September 30 bring flash floods, lightning and humid spells while plants are flowering.
- A short high-country season. Flagstaff gets about 115 frost-free days, with frost possible into June.
- Dry air and little rain. Phoenix gets about 7 inches a year, almost none in May and June, so plants need steady watering.
How Arizona’s regions differ
The low deserts (zones 9a–10a) have a long, nearly frost-free season but brutal summer heat. The mid-elevation Transition Zone around Prescott, Sedona and Payson (about 7a–8b) is milder, with frosts in April–May and October. The Colorado Plateau, including Flagstaff (5b–7a), has cool summers and a short season.
Strains that suit Arizona
Chosen by how long each strain takes, using Beaver Seeds’ researched strain data: an autoflower for a spring run before the heat, and feminized strains that finish before your first freeze.
Price range: $65.00 through $240.00
- Pineapple Express Auto: seed to harvest in about 8–10 weeks, whatever the day length. Started in early March in the low desert, it can finish in May, before the worst heat.
- Gorilla Glue: flowers in about 8–9 weeks, leaving room before the first freeze at mid elevations.
- Platinum OG: flowers in about 8–10 weeks, a fit for an October harvest around Prescott and Sedona.
- Acapulco Gold: flowers in about 9–11 weeks, so keep it for the low deserts, where the season runs into November.
Buying marijuana seeds in Arizona
How Beaver Seeds orders reach Arizona, and what state law says about buying seeds there.
Shipped from our US warehouse
US orders ship by USPS in plain, unbranded packaging. Priority Mail usually arrives in 3–7 days and Ground Advantage in 3–14 days. Shipping is free over $200.
Buy 1, get 1 free
Buy a 10 or 25 seed pack and get a second pack of the same size free, in any strain. 5-seed packs come with 1 extra seed.
80% germination guarantee
Every pack is covered. If your seeds don’t sprout as they should, contact our support team with your order number and we’ll help.
Arizona law counts viable seeds as marijuana, and licensed marijuana establishments may sell to adults 21 and over; state rules also mention stores selling plants. Adults may gift up to 6 plants to another adult. Arizona hasn’t published rules on buying seeds online or from out of state.
Arizona grow FAQ
Short answers to the questions Arizona growers ask most.
Is it legal to grow marijuana at home in Arizona?
Yes. Since November 30, 2020, adults 21 and over may grow up to 6 plants at their primary residence, or 12 per home with two or more adults, in a locked, enclosed area out of public view. No permit is needed.
How many cannabis plants can I grow in Arizona?
6 per adult and no more than 12 per residence. Arizona counts every plant, with no separate limit for seedlings or immature plants.
Can I grow cannabis outside in Arizona?
Yes, in a greenhouse or other enclosed area that is locked against minors and can’t be seen from public view. The law doesn’t say whether a locked, fenced yard counts, so a locked greenhouse is the clearer option.
When should I plant cannabis outdoors in Arizona?
After your local last frost: about March in Phoenix and Tucson, late April to May around Prescott and Sedona, and early to mid June around Flagstaff. Avoid setting young plants out in the low desert between mid-June and mid-September.
Can my landlord stop me from growing in Arizona?
Yes. Arizona lets landlords and other property owners ban or regulate growing on property they own or control.
Sources
- A.R.S. § 36-2852, allowable possession and personal use (Arizona State Legislature)
- A.R.S. § 36-2850, definitions (Arizona State Legislature)
- A.R.S. § 36-2851, property owners and minors (Arizona State Legislature)
- A.R.S. § 36-2804.02, medical cultivation (Arizona State Legislature)
- Adult Use of Marijuana Program FAQs (Arizona Department of Health Services)
- CBD Hemp Production in Arizona (AZ1944) (University of Arizona Cooperative Extension)
- Arizona Climate Zones (AZ1673) (University of Arizona Cooperative Extension)
- Northern Arizona monsoon season (NOAA National Weather Service)
- 2023 Plant Hardiness Zone Map: Arizona (USDA Agricultural Research Service)
Checked November 12, 2026. This page is a plain-language summary of Arizona law, not legal advice. Laws change, so check the official sources before you grow.