Home Cultivation: Gresham vs Portland
How do home cultivation rules compare between Gresham, OR and Portland, OR?
Portland has fewer restrictions than Gresham.
Gresham, OR
Multnomah County
Oregon Measure 91 (2014) allows adults 21+ to grow up to 4 cannabis plants per household for personal use. Multnomah County does not add local restrictions. Portland requires plants to be out of public view under PCC 14B.70. Landlords may prohibit growing in rental leases. OLCC licenses commercial growing separately.
View full Gresham rules →Portland, OR
Multnomah County
Oregon law (ORS 475C.301 and ORS 475C.305) allows adults 21 and older to grow up to 4 cannabis plants per household at their residence in Portland, regardless of the number of adults living there. Plants must not be visible from a public place without the aid of binoculars, aircraft, or other optical aids. Portland does not impose any additional local cannabis cultivation restrictions on private residences.
View full Portland rules →Key Facts Comparison
| Fact | Gresham | Portland |
|---|---|---|
| Plant Limit | 4/household (adults) | 4 mature plants per household |
| Min Age | 21+ | - |
| Visibility | Must be hidden (PDX) | Must not be visible from public place |
| Medical (OMMP) | Up to 6 mature plants | - |
| State Law | Measure 91; ORS 475C | - |
| State Authority | - | ORS 475C.301 / 475C.305 |
| Adult Age | - | 21+ |
| Possession at Home | - | Up to 8 oz usable cannabis |
| Portland Local Rules | - | None additional |
Highlighted rows indicate differences between cities.
Gresham FAQ
Can each adult in a household grow 4 plants?
No. Oregon's limit is 4 plants per household total, not per adult. This is a hard cap under ORS 475C.305.
Can my landlord ban me from growing cannabis?
Yes. Oregon law permits landlords to prohibit cannabis cultivation (and smoking) in leases. Most Multnomah County leases do ban it.
Portland FAQ
How many cannabis plants can I grow at my Portland home?
Up to 4 mature plants per household under ORS 475C.301, regardless of how many adults 21 or older live there. The 4-plant cap is per dwelling, not per person, and Portland adds no further local restriction.
Can I grow cannabis in my Portland backyard?
Yes, as long as the plants are not visible from any public place (sidewalk, street, alley) without using binoculars, drones, or other optical aids per ORS 475C.305. Many growers use privacy fences, greenhouses, or screening to comply.
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