Another option is buckets. 5 gallons/19 L is a good size for peppers and determinate tomatoes. Sometimes you can collect them for free from restaurants and larger grocery stores that have food prep areas because they just end up throwing them away. Just poke a couple holes in the bottom to let excess water out. Or look up double bucket self watering planters if you want to get really fancy.
Another option is buckets. 5 gallons/19 L is a good size for peppers and determinate tomatoes. Sometimes you can collect them for free from restaurants and larger grocery stores that have food prep areas because they just end up throwing them away. Just poke a couple holes in the bottom to let excess water out. Or look up double bucket self watering planters if you want to get really fancy.