Ablow

[...] The flower breaks from its sheath and is ablow / And gives its richest perfumes. [...]

You know, the year's not always May — Oh, once the lilacs were ablow !

[...] against the green, yet, growing in tilled soil, grow stronger and taller than any daffodil can grow in turf : hundreds of them are ablow together, and the very robustness of their splendour [...]