Jasmine Tree (Jasminum) Indoor Decline: Pruning & Bloom Cycle Regimen

Sentimental Jasmine declining after outdoor summer → indoor. Previous advice misquoted: not dark for 6–8 weeks (kills it). Correct regimen:

Annual Cycle for Blooms

1. Post-bloom (Jan): Prune hard (½ size). Pinch new growth for fullness until Aug.
2. Aug–Oct: Stop pinching. Cool nights (40–50°F), completely dark nights (no artificial light), bright days. Dry soil. 6–8 weeks sets buds.
3. Nov–Jan: Normal temps, sunny window. Blooms Jan.
4. Repeat annually.

Your Plant: Out of Sync

Prune now (½ to near base). New growth will follow. Then impose dark-night regimen next Oct for Jan bloom.

Pruning Method

Cut stems just above nodes. New shoots emerge below cuts. No harm even to ground level if roots healthy.

Complex but rewarding. Sentimental value justifies effort.