How long should I quarantine? My plants started dying and I couldn’t figure out why…..thought it was due to the increase heat but all of my plants are indoors. Planta said it was Thrips so I showered the affected plants, sprayed them in Neem oil, changed the soil and repotted. I also purchased granules to mix in with the new soil. Any idea how long I should quarantine? Also the old soil I separated and let outside on my balcony so it’s been exposed to the elements…is it safe to reuse?