That is, walk 9 in the Hillwalks book. From the Station in Horton and turning right into Crag Hill Road, the first track left, to “Poppy Cottage”, now has a sign “Private Road, No Footpath” on it. You have three alternatives: go back and carry on the main road towards the Bridge and turn right onto the footpath; carry on Cragg Hill road for a long mile, till the footbridge over the Ribble, where you can join the path; cheat, go down past Poppy Cottage, or join the riverside path later on as you see fit, without causing any damage of course.
By the way, the main café in Horton has been shut for a while now, but word is that it may open within the year (2019). There is a smaller teashop further south, just past the main path to Pen-y-ghent on the left.
Also, the bluebells and indeed the primroses in Oxenber and Wharfe woods, see my post of May last year, are superb at present, 5th May, ie earlier than most years, and wood anemones, although less than in April, are still around in places, and the early purple orchids are there also.