Explore seeds Seed banks Our approach

A little curiosity. A better grow.

Gathering the collection…

SeedJunkie

For the curious. For the collectors.
For whatever you grow next.

Explore seeds Seed banks Our approach Data & freshness

An independent comparison site.
Purchases happen directly with suppliers.

Royal Jack Auto — Compare seed listings | SeedJunkie

FOLLOW YOUR CURIOSITY

Results for “Royal Jack Auto”

Find a familiar favorite. See the options side by side.

Back to the garden

Search strains

Always check with the supplier

Refine your search

Reset

4 listings · updates automatically

Seed typeFeminizedAutoflowerRegularCBDFast flowering

Listed regionUnited StatesEuropeCanada

Check shipping with each supplier.

Price per seedMaximum price in USD

Seed bankFilter by seed bank

AvailabilityRecently verified in stock

Seen in stock within the last 48 hours.

Apply filters

4 listings · USD per seed

Sort by

Royal Jack Auto

Photo from fourelementsseeds

View listing details

fourelementsseeds

Royal Jack Auto

$6.51 / seed · USD

Recently seen in stock · Oct 23, 2026

Royal Jack Auto

Photo from Royal Queen Seeds

View listing details

Royal Queen Seeds

Royal Jack Auto

$7.86 / seed · USD

Recently seen in stock · Oct 23, 2026

Royal Jack Autoflower Seeds

Photo from ILGM

View listing details

ILGM

Royal Jack Autoflower Seeds

$8.45 / seed · USD

Recently seen in stock · Oct 23, 2026

Royal Jack / Jack Herer Auto Autoflower by Royal Queen Seeds

Photo from Alchimia

View listing details

Alchimia

Royal Jack / Jack Herer Auto Autoflower by Royal Queen Seeds

$7.86 / seed · USD

Recently seen in stock · Oct 23, 2026

Showing 1–4 of 4

Prices reflect the last successful check. USD estimates are per seed and exclude shipping. Confirm price, pack size, and availability with the supplier.