Hey Gerry
The colour Grey in dreams tends to reflect depression, of sorts. Im wanderng if at the time of your dream it hinted at a lifting up and out of this quagmire. Or it may be symbollic of literally lifting your own consciousness up & out of something even your own physical body where things down here are more dense, into a state of being, that was free.
The type of scene you describe is typical of change and growth and flowers in a dream again represent growth or the blooming of something, a completon if you like.
Looking back to the time frame of when you had this dream may hint more to what was happening for you at the time. ie did you find resolution in some emotional event, or a raising of consciousness around some issue? Did you have a spiritual awakening or a realisation that love exists all around us maybe you fell in love or maybe your dream points to a change in perspective or a higher awareness of something. Whatever the case may be the dream imagery suggests that your there was an upliftng in your consciousness to an experience of love and light not a light that we are aware of down here on this earth plane but a light that exists in the heavenly spheres.
& heres an interesting blurb on the symbol of tulips that date back to the persian poets of the 13th century -
The tulip was a topic for Persian poets from the thirteenth century. In the poem Gulistan by Musharrifu'd-din Saadi, described a visionary garden paradise with 'The murmur of a cool stream / bird song, ripe fruit in plenty / bright multicoloured tulips and fragrant roses...'[43] The gift of a red or yellow tulip was a declaration of love, the flower's black center representing a heart burned by passion.[44] In recent times, tulips have featured in the poems of Simin Behbahani. During the Ottoman Empire, the tulip was seen as a symbol of abundance. The era during which the Ottoman Empire was wealthiest is often called the Tulip era or Lale Devri in Turkish.
The shape of emblem of Iran is chosen to resemble a tulip, in memory of the people who died for Iran.
Tulips became popular garden plants in east and west, but, whereas the tulip in Turkish culture was a symbol of paradise on earth and had almost a divine status, in the Netherlands it represented the briefness of life.[2]
The Tulip is also viewed prominently in a number of the Major Arcana cards of the Oswald Wirth Tarot deck. Specifically: Arcanas Zero,One, Four, and Fifteen.
Found here -
https://en.wikipedia.org/wiki/Tulip
Best To You