The 20-year-old had his contract cancelled by the cash-strapped Glasgow club earlier this month.
Several English sides had been linked with Wylde and, although Charlton Athletic were said to be leading the race for the player's signature, he has opted for a move to the Reebok Stadium, according to The Mirror.
The deal is subject to FIFA approval.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| Championship Group | |||||||||
| 1 | Celtic | 2 | 2 | 0 | 0 | 85 | 27 | 58 | 84 |
| 2 | RangersRangers | 2 | 2 | 0 | 0 | 78 | 25 | 53 | 81 |
| 3 | Hearts | 2 | 0 | 1 | 1 | 46 | 37 | 9 | 63 |
| 4 | Kilmarnock | 2 | 0 | 1 | 1 | 44 | 38 | 6 | 52 |
| 5 | St Mirren | 2 | 1 | 0 | 1 | 42 | 46 | -4 | 46 |
| 6 | Dundee | 2 | 0 | 0 | 2 | 46 | 59 | -13 | 41 |
| Relegation Group | |||||||||
| 1 | Hibernian | 2 | 1 | 0 | 1 | 48 | 54 | -6 | 42 |
| 2 | Aberdeen | 2 | 2 | 0 | 0 | 37 | 49 | -12 | 41 |
| 3 | Motherwell | 2 | 1 | 0 | 1 | 50 | 53 | -3 | 40 |
| 4 | Ross County | 2 | 1 | 0 | 1 | 34 | 59 | -25 | 33 |
| 5 | St Johnstone | 2 | 0 | 0 | 2 | 25 | 50 | -25 | 31 |
| R | Livingston | 2 | 1 | 0 | 1 | 25 | 63 | -38 | 21 |
| First Phase | |||||||||
| 1 | Celtic | 33 | 24 | 6 | 3 | 80 | 26 | 54 | 78 |
| 2 | RangersRangers | 33 | 24 | 3 | 6 | 72 | 23 | 49 | 75 |
| 3 | Hearts | 33 | 19 | 5 | 9 | 46 | 34 | 12 | 62 |
| 4 | Kilmarnock | 33 | 13 | 12 | 8 | 43 | 34 | 9 | 51 |
| 5 | St Mirren | 33 | 12 | 7 | 14 | 38 | 43 | -5 | 43 |
| 6 | Dundee | 33 | 10 | 11 | 12 | 44 | 54 | -10 | 41 |
| 7 | Hibernian | 33 | 9 | 12 | 12 | 44 | 51 | -7 | 39 |
| 8 | Motherwell | 33 | 8 | 13 | 12 | 46 | 51 | -5 | 37 |
| 9 | Aberdeen | 33 | 8 | 11 | 14 | 35 | 49 | -14 | 35 |
| 10 | St Johnstone | 33 | 7 | 10 | 16 | 24 | 46 | -22 | 31 |
| 11 | Ross County | 33 | 7 | 9 | 17 | 32 | 56 | -24 | 30 |
| R | Livingston | 33 | 3 | 9 | 21 | 22 | 59 | -37 | 18 |
| > Scottish Premiership Full Table | |||||||||
