Perhaps there are issues about using the USA blessing of the Advent Wreath in England.
At the website of the Liturgy Office and England and Wales it has:
“The edition of the
Book of Blessings produced for use in the Dioceses of United States of America has been authorised by our own Bishops’ Conference for interim use in England and Wales.” (At
Liturgy Office | Ritual Books - Roman Ritual ).
The 1994 Instruction Inculturation and the Roman Liturgy has:
“37. Adaptations of the Roman rite, even in the field of inculturation, depend completely on the authority of the Church. This authority belongs to the Apostolic See, which exercises it through the Congregation for Divine Worship and the Discipline of the Sacraments;[78] it also belongs, within the limits fixed by law, to episcopal conferences[79] and to the diocesan bishop.[80] “No other person, not even if he is a priest, may on his own initiative add, remove or change anything in the liturgy.”[81] Inculturation is not left to the personal initiative of celebrants or to the collective initiative of an assembly.[82]
Likewise concessions granted to one region cannot be extended to other regions without the necessary authorization, even if an episcopal conference considers that there are sufficient reasons for adopting such measures in its own area.”
(The document is at
Varietates Legitimae: Inculturation and the Roman Liturgy ).
The original Latin book, the 1984 book
De Benedictionibus does not include a blessing of the Advent Wreath. The Introduction to the book has that the Conference of Bishops has this responsibility: “39. … b. to weigh carefully and prudently what elements from the traditions and culture of individual peoples may be appropriately admitted into divine worship, then to propose further adaptations that the conference considers necessary or helpful;”. The USA’s Conference of Bishops did this, and received approval for the blessing of the Advent Wreath during Mass.
But it is not clear to me that the Bishops Conference of England and Wales have received this approval.