Dendrocalamus giganteus Seeds: Germination Test 2026
A photo diary of 100 Dendrocalamus giganteus seeds tested by Yunnan Bamboo in Nanning, Guangxi, China.
36 / 100 seeds germinated by Day 5
TEST IN PROGRESS · Observations through 5 October 2026 · Updated 6 October 2026
This is an interim count. We will continue updating this page with new observations, photographs and the final result.
The test at a glance
Sample: 100 giant bamboo seeds; approximately 3.68 g before husk removal.
Method: remove husks → soak for about 33 hours → place on wet tissue.
Setting: covered container on a sunny balcony in Nanning, Guangxi, China.
Progress in 10 seconds
2 Oct · Day 2 — 8 seeds showing buds, about 12 hours after sowing.
3 Oct · Day 3 — 22 seeds showing buds.
4 Oct · Day 4 — 29 sprouts.
5 Oct · Day 5 — 36 germinated seeds; observation continues.
Counts are cumulative, from the original 100 seeds. Day 1 is 1 October.
Photo diary
30 September · Prepare and soak
100 seeds before husk removal: approximately 3.68 g.
13:31 — Husks removed from the 100-seed sample.
Soaked for about 33 hours. Some seeds floated initially; most sank by the second day.
1 October · Sow on wet tissue
21:08 — Seeds placed on wet tissue in a covered container. The seven remaining floating seeds are on the right.
2 October · First buds
08:48 — 8 seeds with white buds (red circles), 11 hours 40 minutes after sowing: approximately 12 hours.
3 October · 22 buds
Red marks identify 22 germinated seeds: 22% of the starting sample.
4 October · 29 sprouts
29 germinated seeds, marked in red: 29% of the starting sample.
5 October · 36 germinated seeds
36 of 100 seeds had germinated.
We replaced the wet paper after mould appeared.
Nine other seeds remained hard and looked healthy, but were not counted as germinated.
Weather during the test
Nanning airport station (ZGNN), 30 September–5 October 2026. Local time: UTC+8; temperatures converted to °C.
These outdoor station readings are not measurements inside the covered container and may not capture every daily extreme.
Our original 3 October comment reported 27–36°C locally. No separate temperature measurement inside the test container was recorded.
How to interpret the results
An ongoing, practical test of one 100-seed sample — not a replicated laboratory trial.
The Day 5 result is separate from the earlier laboratory figure on the product page.
Sprouting does not guarantee seedling survival. Storage, transport and growing conditions affect results.
About this seed collection
After sporadic flowering in previous years without a useful yield, we observed gregarious flowering in 2026. More than 95% of the collected material was empty; around 3,000 seeds were recovered, including small or dry seeds.
These are observations from this collection, not a statement about every flowering event.
Buying giant bamboo seeds?
See current availability, packet sizes, prices, shipping details and mother-bamboo photographs:
For commercial bamboo seeds, also consider climate suitability, nursery establishment and plantation management. This short test does not predict commercial yield.
More updates to follow
The test is not finished. We will continue monitoring and add new counts and photographs here, then report the final result when observation is complete.
Recorded by Lihua Jiang, Yunnan Bamboo · Nanning, Guangxi, China.
Yunnan Bamboo — Bamboo Propagation and Plantation Specialists. From bamboo seeds to commercial plantations.
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