Here's a step-by-step guide on how to grow a bonsai tree from a Ficus religiosa plant:

Acquire a young Ficus religiosa plant:

• Obtain a young Ficus religiosa plant either from a nursery or by germinating the seeds.

• The seeds can be found online or potentially from a local gardening store.

Select a suitable pot:

• Choose a shallow bonsai pot with drainage holes to ensure proper water drainage.

• Usually made of clay or ceramic, bonsai pots.

Prepare the potting mix:

• Create a well-draining soil mixture suitable for bonsai.

• A common mix includes a combination of akadama, pumice, and lava rock.

• You can find pre-made bonsai soil mixes at gardening stores.

Prune the roots and plant the Ficus religiosa:

• Gently remove the plant from its original container, and prune the roots by carefully cutting away about one-third of the root mass.

• This pruning encourages the growth of fine feeder roots.

• Place the tree in the prepared bonsai pot, spreading the roots out evenly.

• Fill the pot with the bonsai soil mix, ensuring that it covers the roots and gently firm it down.

Shape the trunk and branches:

• Begin shaping your bonsai tree by wiring the trunk and primary branches.

• Use bonsai wire to carefully wrap around the branches, bending them into the desired shape.

• Be cautious not to wrap the wire too tightly to avoid damaging the tree.

• Leave the wire on for a few months or until the branches are set in place.

Watering and humidity:

• Ficus religiosa prefers a consistent watering routine.

• Thoroughly water the bonsai, making sure the soil is evenly moist but not soggy.

• Allow the top layer of soil to dry out slightly before the next watering.

• Mist the leaves regularly to increase humidity, as Ficus species generally appreciate higher humidity levels.
  

Light and temperature:

• Place the bonsai tree in a location that receives bright, indirect light.

• Ficus religiosa thrives in warm temperatures, ideally between 65°F to 85°F (18°C to 29°C).

• Keep it away from sharp temperature changes and chilly draughts.

Fertilization:

• Feed your Ficus religiosa bonsai during the growing season, typically from spring to fall.

• Use a balanced, water-soluble bonsai fertilizer diluted to half the recommended strength.

• Apply the fertilizer as directed on the packaging every two to four weeks.

Pruning and maintenance:

• Regularly prune the bonsai to maintain its shape and promote branching.

• Trim back new growth to maintain the desired silhouette.

• Ficus religiosa has a vigorous growth habit, so frequent pruning will be necessary to refine the tree's appearance.

Repotting:

• Repot the bonsai tree every two to three years to refresh the soil and encourage root health.

• Repotting is best done in spring before the growing season begins.

• Prune the roots and replant them in a slightly larger bonsai pot, using fresh bonsai soil.

Remember, growing a bonsai tree is a long-term project that requires ongoing care, patience, and attention. Regularly observe your Ficus religiosa bonsai for signs of pests, diseases, or other issues and address them promptly. With time and proper care, you can enjoy the beauty and serenity of your bonsai tree.