I love this time of year when the May flowers, I have had these three hawthorns many years, the Tall guy flowers without fail, The fat Guy flowered with a single cluster last year for the first time, and this year (after 26 years) The raft flowered.
So why has it taken so long for the raft to flower? There is a lot of old wives tales on getting Hawthorns to flower; these include having the tree pot bound or feeding with High Nitrogen. I have tried these and they did not work, the only change I have made in the last 18 months is using Tibolar, so is it that? The only conclusion I can make is that it is indeed the Tibolar soil conditioner/feed I started using the 4-6-2 early last year and changed to the 13-6-2 around June and the result was as you can see in the photos.