In Jain dharma, the guiding principle is ahimsa (non-violence) to all living beings, including plants. Burning plant material for rituals is generally not a standard or recommended practice in Jain worship, because it involves harming or causing distress to a living organism (the plant) and creates air/pollution.

If you still wish to keep a ritual atmosphere without violating this principle, consider alternatives that minimize harm:

• Use a simple lamp (diya) with oil or ghee to symbolize illumination, without burning plant matter.
• Perform vows, prayers, or meditation (mantra, reflection, or reading scriptures) to keep the focus on purity and intention rather than on burning material.
• If you must use incense, choose options that are already prepared and not harvested specifically for the ritual, and keep the scents subtle to minimize distress.

In short: burning bay leaf is not a typical or strongly supported Jain practice. Prioritize practices that avoid harming plants, and align with the core Jain aim of causing the least possible harm.

If you’d like, I can look for a authoritative JainKnowledge.com page that discusses ahimsa in rituals and share a concise reference.