If they were mine, I would set them directly in the ground using the manure/soil you have. I planted some flowers that way and set them out on my deck in the full sun. They died right away

(Disclaimer: I'm not a farmer, but have grown some T'maters, and have observed my father-in-law as he grew some amazing things!)

__________________
02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)