Self Reliance Exchange continues their long term food storage series with Step 7: Fruits & Veggies. This is a big one. Grains, legumes, and so on are all good, but fruits and vegetables make those others more versatile and offer important nutrition. They recommend growing your own, but also point out that buying in bulk or buying pre-preserved are also viable options.
If you’re interested in home canning, check out my friend Tonya’s site, Country Home Canning. She’s got recipes and techniques, and can help set you up with everything you need.