Heat Pack Upgrade
Add 72 hour heat packs to your order if you're currently residing in a chillier location. We recommend heat packs whenever the potential temperature is less than 50 degrees F. They will be packaged with insulation to avoid burning or overheating your plants. Each heat pack upgrade includes 1 heat pack.
You do not need to purchase this upgrade if purchasing the "Priority Express Shipping Upgrade" as it is included in that upgrade already.