The Urban Craft
Whether you live in a Town or City; what must be remembered is everything has Spirit; rocks, trees & plants etc.
Your house, flat or workplace could be standing on what was once an Oak or Yew Grove hence having their Spirit still with us!
With this in mind, you *can* practice your craft indoors.
If you are lucky enough to have a Sacred space out-doors, you can ask the permission of the Guardian or Wights of the place to take some soil home & use it to plant in.
This is practical if say during the winter months it is not possible to get access to the place because of the weather or you are exposed due to the lack of vegetation in the area.
You can then pot up the soil & plant a small shrub, tree or whatever plant you feel a connection with, this can be placed in your back-yard or indoors depending of course on the choice of plant. You can then place your offerings (red meals) inside after your workings
Another method is to put the soil in a cauldron & place your offerings as above, then take them to you sacred place at the next available opportunity, this can then be repeated.